Tempdrop - BBT tracking while you sleep
Tempdrop - BBT tracking while you sleep
Track fertility effortlessly with the Tempdrop wearable ovulation tracker. Ovulation tracking has never been so easy.
Tempdrop brings the full fertility tracking solution to your smartphone. Whether you are looking to increase your chances of conceiving, or are practicing fertility awareness methods, the Tempdrop fertility tracker device is tailored to you.
Why Tempdrop?
- Non-invasive
- Stress-free temperature tracking without losing sleep
- All-in-one fertility charting app
- Get real-time fertile window insights
- Smart technology
- Delivering accurate data
- Suits irregular cycles
Sizing:
S/M fits 8.5"-15.5"/21.5cm - 39cm
L/XL fits 12.5"-18.5" /31.5cm- 47cm.
Please measure your arm before ordering your Temprdrop fertility tracker.
Please note: Orders shipped to Ireland femme will pay the customs charges.
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Description
Description
Tempdrop makes BBT tracking effortless. Worn overnight, it tracks your basal body temperature while you sleep, giving you accurate, personalised insights into ovulation, fertility, and your cycle - without the stress of early-morning thermometer checks.
Easy all-in-one BBT tracking solution – Tempdrop's wearable sensor and accompanying charting app brings the full fertility charting solution to your smartphone.
Accurate & consistent – eliminates errors from restless nights or late wake-ups
Personalised insights – adapts to your unique sleep & cycle patterns
Easy to use – wear the Tempdrop sensor on your upper arm during sleep and sync to the Tempdrop charting app whenever it's convenient.
Supports PCOS & irregular cycles – reliable even when cycles are unpredictable
Backed by science - Tempdrop uses the latest scientific knowledge to bring you an accurate method of cycle tracking and identification of your fertile window.
Sleep in, no problem - Tempdrop's sensor continuously monitors your basal body temperature while you sleep, eliminating the need to wake up at the same time each day.
How to use
How to use
1️⃣ Wear Tempdrop overnight on your upper arm.
2️⃣ Sync to the app in the morning.
3️⃣ See your temperature data + clear cycle insights.
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How It Works
Fertility & ovulation tracker kit
Introducing Tempdrop - a wearable fertility tracker. Tempdrop sensor & fertility app: A lifelong companion.
FAQs
What is Tempdrop?
What is Tempdrop?
Tempdrop is a smart wearable thermometer and charting app combo that brings an all-in-one fertility monitor to your smartphone.
The Tempdrop sensor is worn on the upper arm during sleep to accurately derive a core nightly sleeping body temperature for the purposes of ovulation tracking. Tempdrop is uniquely able to arrive at an accurate body temperature thanks to a combination of advanced sensors and sophisticated algorithms. Combine temperatures with other fertility symptom tracking within the app to pinpoint ovulation each cycle. Our charting app has a free version option or you can choose to upgrade to our premium features to take advantage of automatic cycle interpretation and fertility insights. As a bonus, our premium option allows you to track your sleep data as well.
If you’re, trying to conceive, charting to know your body, or practicing fertility awareness long-term, the Tempdrop fertility monitor is designed to take the stress out of ovulation tracking. For those that are postpartum, have irregular cycles, work shifts, are a light sleeper, or love to sleep-in, Tempdrop delivers accurate cycle tracking data that is tailored to you.
How does Tempdrop work?
How does Tempdrop work?
Tempdrop is a smart wearable thermometer and charting app for fertility tracking.
The Tempdrop sensor is worn under your upper arm using the Tempdrop armband during sleep. Each night, it collects thousands of data points on your body temperature and sleep motion. We derive your single nightly sleeping temperature from the data using advanced algorithms.
After removing the device, initiate a sync using the Tempdrop sensor and fertility app ( Apple Store, Google Play) and Tempdrop will sync your sleeping temperature using Bluetooth Low-Energy (BLE) to your smartphone. You can track additional fertility symptoms in the charting feature for a complete solution.
The Tempdrop wearable fertility tracker will replace the traditional method of BBT temping so you can stop losing sleep and take the stress out of cycle charting. Click here to learn more.
Will I have to pay an ongoing subscription?
Will I have to pay an ongoing subscription?
Tempdrop is unique because it's a wearable fertility monitor that gives you freedom and options to suit your specific needs.
The Tempdrop fertility app has both free and premium versions.
Free version
- Sync your sensor to receive temp results
- List of temperatures
- Chart view
- Multiple symptom tracking
- Manual chart interpretation (set a cover line, temperature shift count, and peak day)
- Data backup with robust data protection
- Cycle history and status
- Chart export and share
Premium Version
- Sync your sensor to receive temp results
- List of temperatures
- Multiple symptom tracking
- Manual chart interpretation (set a cover line, temperature shift count, and peak day)
- Data backup with robust data protection
- Cycle history and status
- Chart export and share
- Sleep data
- Fertility insights
- Automatic interpretation of temps and cervical mucus
- Interactive fertility course
- Calendar feature
How is Tempdrop different from other basal thermometers?
How is Tempdrop different from other basal thermometers?
As opposed to taking a manual waking temp, Tempdrop offers continuous monitoring, filtering out waking times to give you a true nightly sleeping temperature. The smart algorithm learns your unique nightly and monthly patterns to filter variables that can otherwise skew temp results. Worn high up in the inside of the upper arm, the wearable fertility monitor captures an axillary reading making it more accurate than surface skin temperature.
The accompanying charting fertility app encourages tracking multiple fertility signs to better guide you in understanding your cycle and fertile window. If you already have a favourite fertility app, you can freely use it with your Tempdrop data. The choice is yours!
Can I start temping whilst I am using other birth control methods?
Can I start temping whilst I am using other birth control methods?
Yes. You can start using the Tempdrop ovulation tracker device straight away, even if you are using another form of birth control, such as hormonal birth control.
Tempdrop is not dependant on your cycle status. However, the sooner you start wearing Tempdrop, the sooner it can get through the 'learning phase' (Tempdrop learns your sleep and environmental patterns). This will enable you to catch your first ovulation post hormonal birth control (HBC) or postpartum (PP), whatever your personal circumstances are.
Does it matter what time I wake up or how long I sleep?
Does it matter what time I wake up or how long I sleep?
We are happy to inform you that your days of alarm-clock wake-ups to take your temperature are over. With the Tempdrop wearable fertility monitor, your temperature is monitored continuously throughout the night. This means that whenever you wake up, your sleeping temperature will be waiting to sync to your futility app.
The same applies if you experience disturbed sleep or a shift worker. You will still be able to retrieve a result to chart your cycles. Here are the headlines...
- Tempdrop must be turned on and worn for a minimum of three hours
- Two hours of sleep must be detected for a valid result. Sleep time does not have to be consecutive
As best practice, turn on and wear you Tempdrop fertility tracker just before going to sleep and remove it as soon as you are up for the day. If your sleep is disturbed for a period of time during the night, leave the sensor on.
Is Tempdrop safe?
Is Tempdrop safe?
Perfectly safe!
The Tempdrop fertiloty monitor only transmits a Bluetooth signal in the first 30 seconds when being turned on and when you remove the device from your body and manually initiate syncing. It uses Bluetooth 4.0 to transmit data, which is a very low energy signal (approximately 1000x less than a cell phone). Syncing is less than 30 seconds per day.
The Tempdrop fertility tracker is powered by a standard coin cell type watch battery while it is being worn and recording. No wireless signal or connections are transmitted during sleep.
Finally, The Tempdrop wearable fertility tracker is made from medical grade materials and has FCC and CE certifications. The metal sensor is medical grade stainless steel which can contain trace amounts of Nickle.
Which smartphones can I use with Tempdrop?
Which smartphones can I use with Tempdrop?
Tempdrop is compatible with a wide range of smartphones. Simply visit your app store and search for the Tempdrop app. If you can download it, you're good to go!
I'm trying to get pregnant. How can Tempdrop help me?
I'm trying to get pregnant. How can Tempdrop help me?
On average, properly timed sexual intercourse can triple the likelihood conceiving naturally. By tracking your ovulation, you can identify the days with the highest probabilities of success. The Tempdrop wearable fertility monitor allows you to do just that by allowing you to consistently track accurate body temperature and other fertility symptoms in a stress-free way.
I have irregular cycles - Will Tempdrop work for me?
I have irregular cycles - Will Tempdrop work for me?
Yes! Tempdrop is designed to support all cycle types, including irregular ones.
Tracking fertility can be challenging for those with irregular cycles, but Tempdrop offers a flexible solution that adapts to your unique patterns.
The Tempdrop sensor continuously tracks your basal body temperature (BBT) while you sleep, providing real-time data to help identify ovulation. This is especially helpful for those with irregular cycles, as it takes the stress out of collecting your daily temperature results when cycles are long.
If your cycles are considered irregular, the Tempdrop app won’t estimate your next ovulation, but it still tracks and interprets* your temperature data to confirm when ovulation has taken place. Once ovulation has passed, the app can estimate your next period due date, providing valuable insights for cycle tracking, timing pregnancy tests, or understanding your body's natural rhythms. If pregnancy occurs, the confirmed ovulation date can also be used to calculate an estimated due date with greater accuracy.
Users with irregular cycles are also encouraged to track and log Cervical Mucus observations, as this fertility marker can be used to identify when an ovulation attempt is near. When Cervical Mucus is logged, the app can give additional fertility window insights.
Tracking Fertility with Irregular Cycles
While future ovulation estimates can’t be given when cycles are irregular, Tempdrop can help by:
* Monitoring your temperature patterns over time to recognise ovulatory trends.
* Combining other fertility signs, like cervical mucus tracking, to identify when fertility is high.
* Predict when the next period is due after ovulation is confirmed.
* Identifying the right time to test for pregnancy.
* Assist in accurately predicting a due date based on ovulation timing.
Final Thoughts
Having irregular cycles doesn’t mean you can’t use Tempdrop - it simply means that instead of relying on predictions, you’ll focus more on real-time data interpretation. The Tempdrop fertility monitor remains a powerful tool to help you understand your cycle and fertility health, even when patterns aren’t predictable.
Can I start temping whilst I am using other birth control methods?
Can I start temping whilst I am using other birth control methods?
Yes. You can start using Tempdrop straight away, even if you are using another form of birth control, such as hormonal birth control.
The Tempdrop ovulation tracker is not dependant on your cycle status. However, the sooner you start wearing Tempdrop, the sooner it can get through the 'learning phase' (Tempdrop learns your sleep and environmental patterns). This will enable you to catch your first ovulation post hormonal birth control or postpartum, whatever your personal circumstances are.
Tempdrop Fertility App
Tempdrop brings the full fertility tracking solution to your smartphone. Whether you are looking to increase your chances of conceiving or are practicing fertility awareness methods, Tempdrop is tailored to you.
The Tempdrop fertility app is available in both a free and a premium version with enhanced features for an additional cost.
Tempdrop Premium
Tempdrop Premium is crafted to provide deeper insights into your fertility and overall health.
What benefits come with a premium subscription?
- Ovulation and fertility insights - Get personal cycle interpretation, fertility insights, and ovulation confirmation
- Track your sleep quality - See your nightly sleep patterns, including deep and light sleep stages, and receive overall sleep score.
- Tempdrop Academy's - Fertility awareness education programme. Learn the stages of your menstrual cycle and the benefits of tracking your cycles.
- Calendar view - Use the calendar view to see cycle forecasts and insights 6 months in advance.
When you purchase Tempdrop you get 2 months FREE premium charting app features.
Trusted by experts
FROM TEMPDROP TO TINY TOES: HOW KATIE UNLOCKED HER FERTILITY MYSTERY
“Katie, your cycles look fine, nothing to worry about.”
That’s what she kept hearing. And on paper, it made sense. Her cycles were mostly regular. Ovulation usually happened at a normal time. GP tests didn’t show anything unusual.
But Katie knew something was off. She’d started to notice the occasional late ovulation and a few irregular cycles creeping in. Plus, tracking her basal body temperature with an oral thermometer was stressful, her shift work made it nearly impossible to take a reading at the same time every morning and get accurate feedback.
When she came to see me, I suggested trying Tempdrop. It would take the pressure off her routine while still giving us accurate, consistent data to work with. Katie ordered one straight away and started tracking.
Within just one month, the mystery started to unravel. We discovered she had a short luteal phase, something that was invisible on standard GP checks and easy to miss when you only look at cycle length.
With that knowledge, she was able to get the medication she needed. Fast forward, and Katie is now holding her beautiful baby girl, all because she became her own fertility detective and we worked together to uncover what was really going on.
Sometimes, the answers aren’t in the “average” cycle data. They’re in the details you uncover when you track consistently, and with the right tools.
Client story provided by Kate (The Cheshire Acupuncturist).
The Journal
Show Notes: Women, Pleasure & Taboo: Redefining Intimacy Through Fertility and Menopause
Women, Pleasure & Taboo: Redefining Intimacy Through Fertility and Menopause Title: Women, Pleasure & Taboo: Redefining Intimacy Through Fertility and Menopause Host: Stef Meachin Guest: Cecilie Hjelmager, Co-Founder of Sitre Length: ~30 minutes In the first episode of Season 3, Know Your Flow returns with a bold and important conversation about intimacy, female pleasure, and wellness. Host Stef Meachin, co-founder of femme, is joined by Cecilie Hjelmager, co-founder of the Danish intimacy brand Sitre, to explore why intimacy and pleasure are still treated as taboo topics - even among women - and how this conversation is finally beginning to change. Cecilie shares how her own experiences, alongside her co-founder Julie’s, inspired the creation of Sitre - a brand redefining intimacy with products designed to support fertility, postpartum, perimenopause, and menopause, all while promoting inclusivity and education. Together, Stef and Cecilie discuss how communication, emotional connection, and self-awareness can transform how we think about sex and intimacy at every life stage. “We wouldn’t even be on this planet without intimacy, so why is it still so taboo?” Stef Meachin In This Episode, We Discuss: The story behind Sitre and its mission to make intimacy part of overall wellness Why conversations about female pleasure are still surrounded by stigma The impact of fertility journeys, hormonal changes, and menopause on intimacy How small acts of connection — from touch to setting a mood — can nurture relationships The importance of fertility-safe and body-friendly products for women’s health How Sitre is building an inclusive storytelling platform to educate and empower Why teaching intimacy as part of wellbeing (not just sex education) should start earlier Listen here “Intimacy isn’t a luxury - it’s a key part of our wellbeing.” Cecilie Hjelmager Episode Takeaways Intimacy should be seen as wellness, not shame. Open communication between partners is vital through life’s changes. Pleasure and emotional connection support mental and physical health. Safe, inclusive products can empower women through every stage of life. Sitre products containing CBD and Vitamin E, could really help those with endometriosis and adenomyosis with intimacy as it often causes muscle spasms and tension “A good orgasm can be one of the best stress relievers - yet no one teaches that.” Cecilie Hjelmager Timestamps 00:00 – Welcome to Season 3 of Know Your Flow Stef opens the new season with excitement and introduces today’s theme: intimacy — a subject many women still find difficult to talk about. 01:00 – Introducing Cecilie and Sitre Meet Cecilie Hjelmager, co-founder of the Copenhagen-based intimacy brand Sitre, redefining how we think about pleasure, wellness, and women’s health. 02:00 – The Story Behind Sitre Cecilie shares how her and her co-founder Julie’s personal experiences led to creating Sitre — a brand inspired by the need for safe, empowering products that treat intimacy as part of overall wellbeing. 04:20 – Why Is Female Pleasure Still Taboo? A powerful discussion on why women’s pleasure has been ignored for centuries, the influence of media and male-centric narratives, and why open conversations are the key to change. 07:00 – The Importance of Representation and Storytelling Cecilie explains how sharing real stories from women helps break shame and normalise female desire, pleasure, and connection. 08:50 – Intimacy During Fertility and Menopause Stef and Cecilie explore how intimacy often suffers during fertility struggles and menopause, and how communication can strengthen relationships during these vulnerable stages. 10:45 – Redefining Intimacy Beyond Sex Cecilie shares how intimacy isn’t just about penetration — it’s about connection, touch, and acts of care like massages or lighting a candle to build closeness without pressure. 13:30 – The Pressure of Performance and Communication in Relationships Stef reflects on her own experience attending an intimacy masterclass, highlighting the importance of communication, honesty, and learning to adapt with your partner. 14:30 – Fertility-Safe Lubricants & Product Safety Cecilie explains why not all lubricants are fertility-safe and how Sitre prioritises natural ingredients, pH balance, and skin health to ensure safety during fertility treatment and menopause. 17:30 – Ingredients That Support Women’s Wellness Discover how Sitre uses Vitamin E for healing and CBD for relaxation and anti-inflammatory benefits — designed to nurture the body and reduce tension. 19:20 – Education, Inclusivity & Changing the Conversation Cecilie discusses why Sitre built a storytelling platform (feelSitre.com) to share honest, diverse experiences from women of all ages and backgrounds. 22:30 – Intimacy Education and Schools Stef and Cecilie reflect on how sex education in schools focuses on biology and contraception, not pleasure or wellbeing — and why this needs to change. 24:00 – Intimacy as Wellness and Stress Relief They discuss the mental and physical benefits of pleasure — from stress relief and better sleep to improved self-connection. 25:00 – Redefining the Language of Intimacy Cecilie talks about moving away from “kinky” or “dirty” language to embrace intimacy as something mindful, soft, and emotional — not performative. 27:00 – What’s Next for Sitre Cecilie reveals what’s coming next for the brand — from new products inspired by daily wellness rituals to expanding Sitre’s storytelling and educational platform. 29:00 – Where to Find Sitre Cecilie invites listeners to connect on Instagram @feelSitre Sitre products are also available here. 30:00 – Closing Thoughts Stef wraps up with a heartfelt thank you, reflecting on the importance of open conversations about intimacy, connection, and women’s wellbeing. “It’s about redefining intimacy as connection, not performance.” Cecilie Hjelmager Episode Summary In this episode, Stef and Cecilie challenge the taboos around female pleasure and redefine intimacy as a vital part of wellness. They discuss fertility, menopause, communication in relationships, and the power of safe, inclusive products and education. It’s an honest, empowering conversation for every woman learning to connect with her body, her partner, and herself. Listen & Subscribe Listen to Know Your Flow by femme on Spotify, Apple Podcasts, or wherever you get your podcasts — and don’t forget to subscribe to catch the next episode in Season 3.
Learn moreBaby Loss: Emotional Challenges, Grief, and Support After Miscarriage
“Grieving after baby loss or miscarriage is deeply challenging. Learn expert insights on coping with grief, supporting parents, and navigating the emotions of trying to conceive again.”
Learn moreCoffee and Hormones: Brewing a Hormone-Smart Coffee Routine
Love coffee? Let’s make it cycle-smart Love coffee but not always the jitters, sleep dips, or hot flushes that can tag along? Your caffeine sensitivity can shift across your menstrual cycle and again in perimenopause and menopause. Here’s a friendly, science-savvy guide to timing, dosing, and swapping your brew so it works with your body, not against it. This International Coffee Day, we’re sharing all our tips for enjoying your coffee while nuturing your body and hormones throughout your cycle. Key things to note… Sensitivity to caffeine can vary across your cycle. Keep coffee to the morning, after food, and avoid for up to 6–8 hours before bed. In PMS/luteal and during peri/menopause, try smaller cups, half-caff/decaf, and iced options. Track what changes for you (sleep, mood, hot flushes, anxiety, digestion). Bean Basics Caffeine can hang around for 6–8 hours; late cups can nudge anxiety and sleep issues. Try coffee 60–90 minutes after waking to avoid stacking on your natural morning cortisol spike. Eat first (protein + fibre) and drink water alongside to reduce jitters. Everyone’s sensitivity is different - and it can change across your cycle and through midlife. Brewed Awakening: Time Your Caffeine to Your Cycle Menstrual Phase (period days) Lower energy and cramps are common. Try: gentler brew, smaller cup, after a protein-rich breakfast. If cramps/IBS flare: switch to half-caff, decaf, cacao, or herbal options. Follicular Phase (energy rising) Many feel more caffeine tolerant here. Try: 1–2 small cups AM only; pair with water. If you tend to feel anxious: keep it to one. Ovulatory Phase (peak energy, sometimes “wired”) Great vibes… or buzzy. Try: one cup mid-morning, skip the second. If edgy: half-caff or matcha. Luteal/PMS (often more sensitive) Sleep and mood can dip; caffeine may amplify both. Try:half-caff/decaf, stop by early afternoon, hydrate well. Support: steady meals (protein + fibre) to keep blood sugar calm. Perimenopause & Menopause Hot flushes, fragmented sleep, and anxiety can be more caffeine-reactive. Try: iced or decaf, smaller cups, always after food, avoid late-PM. Track: notice patterns between caffeine and symptoms (more on that below). How Much Caffeine Is in My Cup? Typical ranges (brands and brews vary - use these as guides only): Espresso (1 shot / 30–40 ml): 60–75 mg Brewed coffee (240 ml): 80–100 mg Cold brew (350 ml): 150–240 mg Instant (240 ml): 60–80 mg Decaf (240 ml): 2–15 mg Black tea (240 ml): 40–60 mg Green tea (240 ml): 20–45 mg Matcha (1 tsp): 50–70 mg Cacao (1 tbsp): 10–25 mg Sleep tip: Many people sleep better when their last caffeine is 6–8 hours before bedtime (earlier for those of us who are sensitive to caffeine). Smart Swaps & Helpful Add-Ons Swaps: half-caff, decaf, matcha, cacao, chicory/dandelion “coffee.”Add-ons: cinnamon, milk/protein, ice (for hot flushes), and a water chaser. Two calmer-caffeine recipes to try: Cool Calm Latte (decaf, iced) 1 shot decaf espresso (or strong decaf coffee) Ice + milk of choice Pinch cinnamon, Drop of vanilla extract Optional: a scoop of collagen or protein if it suits you Cacao Chill (mocha-style, optional decaf) 1 tbsp cacao powder Milk of choice + ice 1 shot espresso (or decaf espresso) Whisk or shake until smooth Our simple cycle & coffee recommendations Follicular: 10:00 small latte → water → skip any coffee after 14:00. Luteal: 09:30 half-caff flat white after breakfast; herbal tea later. Peri/Meno: 11:00 iced decaf with lunch; protect sleep window. Track Your Response (Simple Check-In) Pick a week (or two) and jot a quick daily note on: Sleep: time to fall asleep, night wakings Mood/Anxiety: calm ↔ jittery Hot Flushes: frequency/intensity Digestion: comfy ↔ crampy/urgent Caffeine: what/when/how much Patterns beat guesswork. If something feels off, scale back, shift timing earlier, or try a swap. FAQs How many cups are “okay”? It depends on your sensitivity and goals. Many feel best at ≤ 1 small cup in luteal/PMS and peri/menopause. In more tolerant phases, 1–2 small AM cups can be fine. Is decaf “caffeine-free”? Not entirely - decaf still contains a small amount of caffeine (often 2–15 mg per cup). What about matcha? Matcha can feel smoother for some due to L-theanine, but it still contains caffeine (roughly 50–70 mg per teaspoon). Coffee and Hormones Round-Up So that's it, there are our tips of coffee and hormones. Coffee can absolutely be part of a hormone-friendly routine - especially when you time it, size it, and tailor it to your current phase. Start with morning-only, after food, wrap by early afternoon, and keep an eye on sleep and symptoms. Your kinder-caffeine sweet spot is personal—and worth finding.
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