Tempdrop accurate ovulation tracker with fertility tracker app

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Instructional graphic for a sleep-tracking app showing four numbered steps: wear the band before sleep, sync with the Tempdrop app whenever, add symptoms, and get results. A hand holding a smartphone displaying the app is shown on the right against a dark blue background with the headline 'As easy as falling asleep.

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UK ExclusiveSave 8%

Tempdrop Fertility, Cycle & Ovulation Tracker | Wearable Basal Body Temperature Tracker

£229.00

£229.00 ~~£249.00~~

In stock

Track your Basal Body Temperature (BBT) accurately and easily with the Tempdrop wearable BBT thermometer.

Track fertile days & ovulation
No early wake-ups needed
Works with irregular cycles
Clinically validated BBT tracking

Size: Small/Medium

Small/Medium Small/Medium + IVFN Large/XL Large/XL + IVFN

For more information on the IVFN add-on, please click .

Please measure your arm before ordering your Tempdrop fertility tracker. See Size Chart above for measurements.

Description

Tempdrop is a wearable basal body temperature (BBT) tracker designed to collect temperature data while you sleep. Worn on the upper arm overnight, it records temperature patterns and syncs them to the Tempdrop app so you can build a consistent cycle chart without taking a manual oral temperature first thing each morning.

BBT typically rises after ovulation as progesterone increases. Tracking that temperature shift over time can help you identify cycle patterns and confirm that an ovulatory temperature rise has occurred. The Tempdrop app also lets you log symptoms and review your cycle data in one place.

Tempdrop is particularly useful for people who want a more convenient way to collect BBT data, including those with irregular sleep schedules or who find traditional morning temperature-taking difficult. The device is available with Small/Medium and Large/XL armband options.

Important: Tempdrop is a cycle-tracking device. It does not diagnose fertility problems or hormonal conditions, and it is not approved as a contraceptive device. If you are using fertility-awareness methods to avoid pregnancy, follow an appropriate evidence-based method and professional guidance rather than relying on Tempdrop alone.

Explore fertility and ovulation tracking tools or keep your device ready with Tempdrop Replacement Armbands.

What is the IVFN add-on?

The IVFN add-on gives you 12 months of Premium Membership alongside your Tempdrop, combining fertility tracking with expert-led support, education and community access.

Access fertility and reproductive health experts through live online sessions and Q&As.
Use educational fertility content, practical resources and expert-led information.
Join supportive community discussions, virtual meetups and safe-space sessions.
Unlock member-only wellbeing offers and selected consultation benefits.

After purchase, the Tempdrop order confirmation is followed by instructions explaining how to access the IVFN Membership.

How it works

Tempdrop takes the most effective method of fertility tracking and makes it effortless. Here’s how:

Step 1 - Wear it to bed. Slip the Tempdrop sensor into the armband and wear it on your upper arm before you go to sleep. That’s it. No setup, no alarms, nothing to remember in the morning.

Step 2 - It tracks while you sleep. Throughout the night, Tempdrop collects thousands of temperature and movement data points from your body. Its smart algorithm filters out any disturbances - restless nights, late wake-ups, shift work - to calculate one accurate, reliable basal body temperature reading.

Step 3 - Sync in the morning. When you wake up, remove the sensor and open the Tempdrop app. A quick Bluetooth sync sends your overnight data straight to your smartphone - available on iOS and Android.

Step 4 - Understand your cycle. Your temperature is automatically added to your chart, building a clearer picture of your cycle over time. Log additional symptoms, track your fertile window and get personalised insights - all in one place.

The result? Accurate BBT tracking without the 6am alarms, rigid routines, or missed readings. Just consistent, meaningful data that helps you understand your body better every single day.

Deliveries & Returns

Delivery

All orders are processed within 2 business days.
Free standard delivery on orders over £40.
Orders to Ireland are shipped via UPS and typically arrive within 3–5 working days.
Please note: While we make the necessary updates to comply with new EU packaging regulations, some products are temporarily unavailable for delivery to the Republic of Ireland. Tempdrop products are unaffected and can still be delivered as normal. We apologise for any inconvenience caused.

Returns

Tempdrop is classified as a medical device and cannot be returned or exchanged once opened. Please check sizing carefully before placing your order. This does not affect your statutory rights if the product is faulty.
Unopened items can be returned within 30 days of delivery with valid proof of purchase.
To initiate a return, email talktous@femmehealth.co.uk with your order number and reason for return.

View the shipping policy here.

View the returns policy here.

Please note: For orders shipped to Ireland, femme will pay any customs charges.

OVUM Time To Conceive 90 Capsules £44.00

In stock

Proceive® Conception & Pregnancy Omega 3 £21.50

In stock

Gigi PMS & Hormone Balance Blend £44.00

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Select a payment option to view the instalment breakdown.

The easy way to track your fertility

Built around real sleep

Wear Tempdrop overnight and let it collect the data in the background. There is no need to take a reading at the same time each morning or build your routine around your thermometer.

Learns your temperature pattern

Tempdrop’s algorithm processes your overnight readings to build a temperature pattern around you, filtering out everyday disruptions so the chart is more useful than a single morning reading.

couple with woman wearing tempdrop looking at tempdrop app on smart phone

All-in-one fertility tracking app

Sync your data to the companion app for easy charting, cycle tracking, and clear fertility insights, all-in-one place on your smartphone.

BBT TRACKING OPTIONS

Find the right tracker for your life

Not all temperature trackers work the same way. Here's why placement, and purpose, make all the difference.

Find the right tracker for your life
	Option 1 Tempdrop Recommended	Option 2 Basic Basal Thermometer	Option 3 Finger & Wrist Wearables
Temperature & placement	True core BBT - inner upper arm	Oral - skewed by movement / timing	Surface skin - affected by ambient temperature
Accuracy	Highest - algorithm filtering	Only with a perfect routine	Variable, environment-dependent
Daily Effort	Wear overnight, sync daily	Same wake time, every day	Passive, but not fertility-tuned.
Built for irregular cycles, PCOS & shift work	Yes	No	No
Cost	£229ㅤ~~£249~~	~£20	£200–£500 +subscription
Best for	Accurate, stress-free tracking - irregular cycles, PCOS, busy lifestyles	Strict routines & tight budgets	General wellness, not fertility tracking

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How Tempdrop Works

Understand your fertility and cycle with the Tempdrop wearable monitor.

Wear it to bed - Pop on the armband and press the button on the sensor to turn it on
Tracks while you sleep - Smart algorithm filters out disturbances to give you an accurate reading
Sync in the morning - Quick Bluetooth sync to the app
Understand your cycle - Your chart updates automatically, with personalised insights

The Tempdrop App

Track your cycle with ease with the Tempdrop app.

Tempdrop’s app turns your nightly temperature data into simple, useful cycle insights.

A teardrop shape surrounded by three clockwise arrows forming a circular pattern.

Cycle Tracking

See your full cycle at a glance.

A maroon outline diagram showing two ovaries connected by fallopian tubes to a uterus.

Personalised Fertility Insights*

Tailored to your unique body.

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Ovulation Confirmation

Know when you’ve ovulated.

A crescent moon shape with three Zs inside representing sleep.

Sleep Quality Analysis*

Get insights on your quality of sleep.

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Multiple Symptom Tracking

Track more than just temperature.

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Accurate Fertility Predictions

98.6% accuracy in clinical trials.

*Premium app features.

The core app is completely free and gives you everything you need to track and understand your cycle. However, if you want to go deeper, the premium app unlocks additional features for just £4/month - entirely optional.

The Tempdrop App

Track your cycle with ease with the Tempdrop app.

Tempdrop’s app turns your nightly temperature data into simple, useful cycle insights.

Cycle Tracking

See your full cycle at a glance.

Personalised Fertility Insights*

Tailored to your unique body.

Ovulation Confirmation

Know when you’ve ovulated.

Sleep Quality Analysis*

Get insights on your quality of sleep.

Multiple Symptom Tracking

Track more than just temperature.

Accurate Fertility Predictions

98.6% accuracy in clinical trials.

*Premium app features.

Results You Can Trust

94%

of users recorded a temperature shift across 80% of cycle days.

2.1

average cycles to conception for users tracking at least 60% of each cycle.

55k+

pregnancies reported by Tempdrop users tracking their cycles with the device.

Support For Every Cycle

Tempdrop helps you understand your cycle more clearly, whether you're trying to conceive, managing irregular cycles, or navigating hormonal changes.

lady sleeping with a wearable ovulation tracker on her arm

Pinpoint your fertile window with more confidence.

Trying To Conceive

Tempdrop tracks your overnight temperature patterns to help confirm ovulation and make your fertile window easier to interpret. Over time, your chart builds a clearer picture of your cycle, giving you more useful context when timing sex for pregnancy.

Over 55k pregnancies.

Clinically validated.

Wear it. Sleep. Sync.

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Kate

The Cheshire Acupuncturist

"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."

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Dr. Meagan Breining

Naturopathic Doctor

“I want to be able to share Tempdrop with anyone who is willing to listen! I believe fertility awareness is highly under-utilized & I love how Tempdrop's team wants to increase education about FAM's.”

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Megan Maitland

Women’s Health Expert

“Tempdrop cuts through all the inaccuracies that can go along with basal body temperature tracking, and I love that it can be used by women who don’t have regular sleep schedules or have irregular periods.”

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Dr. Alicia Thompson

Obstetrician gynecologist

“I'm passionate about Tempdrop and eager to see how far it can go to help women learn about their bodies.”

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Tarina Mosley

Certified Fertility Awareness Educator

“I love this product. I purchased one of the original Tempdrops and have been obsessed ever since. I highly recommend Tempdrop to my clients.”

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Dr. Mona Wiggins

Doctor of Nursing Practice, FAM Educator & Cycle Coach

“When I came across an easier answer to monitoring BBT I was mesmerized.”

Does it matter what time I wake up or how long I sleep?

Not at all - this is one of the things that makes Tempdrop different. Traditional BBT tracking requires you to wake up at exactly the same time every day, but Tempdrop's algorithm accounts for variations in your sleep duration and wake time. Whether you had a restless night, a lie-in, or an early start, your data remains accurate and reliable.

The only requirement is that the sensor is worn for a minimum of 3 hours, with at least 2 hours of sleep detected during that time - and those 2 hours don't need to be consecutive. So even if your sleep is broken or interrupted, Tempdrop can still give you a valid reading.

I have irregular cycles, can Tempdrop be my period tracker too?

Absolutely - Tempdrop is designed to support all cycles, including irregular ones.

Tracking fertility with an irregular cycle can feel overwhelming, but Tempdrop takes the stress out of it by continuously monitoring your basal body temperature while you sleep and adapting to your unique patterns over time.

While the app won't estimate future ovulation dates for irregular cycles, it still tracks and interprets your temperature data to confirm when ovulation has taken place.

You can also log cervical mucus observations in the app alongside your temperature data - a really useful addition for irregular cycles, as it can indicate when an ovulation attempt is near and give you additional fertile window insights.

So while your cycle might be unpredictable, Tempdrop helps you understand what's happening in your body every step of the way.

I am trying to conceive, how can Tempdrop track my fertile days?

Timing is everything when it comes to conception - and properly timed intercourse can triple your likelihood of conceiving naturally. That's where Tempdrop comes in.

By consistently tracking your basal body temperature overnight, Tempdrop helps you identify your fertile window and pinpoint the days with the highest chance of success. No guesswork, no counting days - just accurate, personalised data from your own body.

And because Tempdrop removes all the stress from daily temperature tracking, you can focus on what actually matters - without your fertility journey taking over your life.

Is Tempdrop safe?

Completely - Tempdrop is designed with your safety in mind from the ground up.

The sensor only transmits a Bluetooth signal twice: in the first 30 seconds when turned on, and when you manually initiate syncing after waking up. Syncing takes less than 30 seconds, and no wireless signal is transmitted at all while you're sleeping. The Bluetooth 4.0 signal it uses is extremely low energy - approximately 1,000 times less than a standard mobile phone call.

While wearing it overnight, Tempdrop runs purely on a standard coin cell watch battery with no wireless connections active.

It's made from medical grade materials, including a stainless steel sensor, and holds CE certification. Please note the stainless steel may contain trace amounts of nickel, so if you have a known nickel sensitivity it's worth bearing that in mind.

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, so you can choose the level of support that works best for you.

Every Tempdrop user gets their first 2 months of Premium completely free, giving you full access to Tempdrop's advanced fertility insights, automatic interpretation and additional tracking features from the start.

Free version

Sync your sensor to receive temperature 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 sharing

Premium Version – first 2 months FREE

Your first 2 months of Tempdrop Premium are included free, allowing you to experience all of the additional features before deciding whether you want to continue with Premium.

Sync your sensor to receive temperature 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 sharing
Sleep data
Fertility insights
Automatic interpretation of temperatures and cervical mucus
Interactive fertility course
Calendar feature

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 using Tempdrop whilst on birth control?

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 dependent 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.

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!