Only 13% of women can accurately identify their fertile window.

Stop guessing. Start knowing.

Conceive with Cayla
TTC Hero Image

By continuously tracking, Cayla identifies and learns your unique hormonal patterns - giving you a complete, personalised view of your fertility, not just fragments.

Pinpoints your fertile window

Know exactly when you're most likely to conceive, no guesswork, no ovulation test strips, no temperature tracking at 6am.

High fertility today UIBackground

Tracks all 4 hormones that matter

Get the complete picture of your cycle: Oestrogen (egg development), LH surge (ovulation trigger), progesterone (confirming ovulation), and FSH (ovarian response).

Hormone tracking dashboardBackground

Catches ovulation in real-time

Detects your LH surge as it happens, giving you advance notice before ovulation so you can time intercourse perfectly.

Real-time ovulation graphBackground

Confirms ovulation actually happened

Rising progesterone after ovulation confirms you ovulated. Many cycles look normal but are anovulatory (no egg released). Unlike traditional ovulation tests Cayla shows you the truth.

Ovulation confirmation graphBackground

Identifies potential issues early

Spot patterns like short luteal phases, low progesterone, or irregular ovulation; data you can bring to your doctor to get help faster.

Low Progesterone alert UIBackground

Works passively in the background

No peeing on sticks. No charts to maintain. Cayla tracks automatically every time you use the toilet, giving you insights without the mental load.

User detected logging UIBackground

The effortless way to track your fertility, so you can focus on what matters.

Monitoring method
Hormones measured
Data frequency
User effort
Cycle insights
Ovulation confirmation

Cayla

100% passive, 24/7
LH, FSH, Oestrogen, Progesterone
Daily monitoring
No user effort required
Full hormone cycle visibility
Confirms ovulation beforehand

Urine test strips

Manual urine testing
Only measures LH
Once per test
Requires daily test
Detects short fertility window
Can't confirm ovulation happened

Blood Tests

Blood drawn in clinic
Ordered by doctor
Only after visiting the GP
Requires attending an appointment
Single hormone snapshot
Sometimes confimed via lab progesterone tests