Suivi de regles gratuit en ligne
Suivez votre cycle menstruel en ligne gratuitement. Enregistrez vos regles, predisez vos prochaines dates et reparez les tendances. Sans compte.
Prefer an app? You can use the app to track daily with cycle insights, ovulation estimates, and reminders (free on iOS). If you want deeper setup options, unlock full tracking in the Bloom app.
What this free period tracker can (and can’t) do
This tool creates a simple cycle calendar based on the dates you enter. It’s designed for general awareness and planning - not diagnosis.
- Next period estimate: calculated from your last start date + your typical cycle length
- Ovulation estimate: shown as ~14 days before your next period (this can vary)
- Privacy-first: your entries stay on your device (no account required)
Important: Fertile window and ovulation dates are estimates and shouldn’t be used as a method of birth control. If you have very irregular cycles, very heavy bleeding, severe pain, or you might be pregnant, consider checking in with a clinician.
Start Tracking Your Cycle
Enter the first day of your last period plus your typical cycle and period length. We’ll generate a simple calendar with estimated dates (your body can vary month to month).
Why Track Your Period?
Predict Your Cycle
Know when your next period will start and plan accordingly. Never be caught off guard again.
Identify Ovulation
Track your fertile window and ovulation date for family planning or conception.
Understand Patterns
Identify patterns in your cycle, symptoms, and mood changes over time.
Complete Privacy
Your data stays on your device. No cloud storage, no tracking, no data collection.
Period Tracker FAQ
How accurate is this period tracker?
It provides estimates based on the cycle length you select. Cycles can shift due to stress, travel, illness, postpartum changes, perimenopause, and many other factors - so treat the dates as a helpful guide, not a guarantee.
How do you calculate ovulation and the fertile window?
We estimate ovulation as about 14 days before your next period and show a fertile window around that date. Real ovulation timing varies from person to person (and month to month), so this is a rough estimate.
Can I use this as birth control?
No. Calendar-based estimates aren’t reliable contraception on their own. If you’re trying to avoid pregnancy, use a proven method and talk with a clinician about options that fit your body and goals.
What’s a “normal” cycle length?
Many people have cycles between about 21–35 days, but variation happens. If your cycles are consistently outside that range, you’re missing periods, or you have symptoms that worry you, consider checking in with a healthcare professional.
Is my data private?
Yes - calculations run locally in your browser, and bloom doesn’t require an account to use this tool.
When should I seek medical care?
If you have very heavy bleeding, severe pain, bleeding between periods, sudden major changes in your cycle, or you might be pregnant, it’s a good idea to get medical advice.
More Helpful Tools
📅Ovulation Calculator
Calculate your fertile window and ovulation date based on your cycle length.
Calculate Now👶Due Date Calculator
Find out your estimated due date and track your pregnancy progress.
Calculate NowWant More Advanced Features?
Try the bloom App
Get the full bloom experience with advanced tracking, predictions, and insights. All the privacy you love, with features that grow with you.
