Your pregnancy, week by week

When will you meet your baby?

Estimate your due date and see exactly where you are in the 40-week journey — then follow along with a gentle, science-grounded week-by-week guide.

✦ Free & private — your dates stay on your device
✦ Works offline, installs like an app
✦ Three dating methods: period, conception, IVF

First day of your last period

Average cycle length — defaults to 28 days

Date of conception or ovulation

Embryo transfer date

Embryo age

The toolkit

Everything you need, in one calm place

From trying-to-conceive to those first contractions — simple tools that respect your time and your privacy.

Due Date Calculator When will you meet your baby? Ovulation Calculator Find your most fertile days. hCG Doubling Calculator Track your hCG rise. Weight Gain Calculator A healthy range for you. How Far Along Am I? Find your week instantly. Conception Date Calculator Estimate when you conceived. Chinese Gender Predictor A playful old tradition. Contraction Timer Time labour, tap by tap.

40 weeks of wonder

Follow your baby’s growth

Each week brings new developments. Peek ahead, or jump to where you are today.

All 40 weeks

Week 8 a raspberry Tiny movements Week 12 a lime Reflexes switch on Week 20 a banana Halfway there Week 28 an eggplant Welcome to trimester three Week 36 a head of romaine lettuce Dropping down Week 40 a small pumpkin Meeting your baby

Keep it in your pocket

Add Mama Bloom to your home screen for instant, offline access to your due date, your week, and the contraction timer — no app store, no account.

In your browser menu, tap Add to Home Screen or Install.

Good to know

Frequently asked questions

How do you calculate a due date?

A due date is estimated as 40 weeks (280 days) from the first day of your last menstrual period — known as Naegele’s rule. If you know your conception or ovulation date, it is 266 days from then. Mama Bloom also supports IVF transfer dates for a more precise estimate.

Is Mama Bloom free and private?

Yes. Every calculator is completely free, with no account or sign-up. All calculations run in your browser and your dates never leave your device — nothing is uploaded or sold.

Does the pregnancy tracker work offline?

Yes. Mama Bloom is an installable Progressive Web App, so once added to your home screen it loads instantly and works without a connection.

This is an estimate, not medical advice. This is an estimate, not medical advice. Dates and figures are general guidance — every pregnancy is different. Your healthcare provider’s assessment, especially from an early ultrasound, always takes priority. Always speak with your provider about your pregnancy.