Free · No signup · No app to install
Calm tools for the
40 most important weeks
of your life.
Due date calculator, week-by-week tracker, contraction timer, ovulation calculator, baby name generator, and growth percentiles. Built by people who think you've already downloaded enough apps.
Six tools, all free
Each one runs entirely in your browser — nothing you enter is sent to a server. No tracking. No accounts.
Due Date Calculator
Estimate your delivery date by last period or conception date. Naegele’s rule plus cycle adjustments.
Open tool →Week Tracker
See exactly how many weeks and days pregnant you are, plus your trimester and key milestones.
Open tool →Contraction Timer
Tap once to start, once to stop. Tracks duration, frequency, and pattern over time.
Open tool →Ovulation Calculator
Find your fertile window based on your cycle length. Plan or avoid with confidence.
Open tool →Baby Name Generator
Filter by origin, style, length, and starting letter. Boys, girls, and unisex.
Open tool →Growth Percentile
Plot your baby’s weight, length, and head circumference against WHO percentile curves.
Open tool →No tracking. No upsell. Just tools.
Private by design
Calculations run in your browser. We never see your dates, cycle, or measurements.
Clinical accuracy
Naegele's rule for due dates, WHO standards for growth percentiles. Math you can trust.
Calm, not chatty
No daily push notifications. No "Mama" pet names. Just the answer you came for.
From our guides
Trimester 1
How to calculate your due date
Naegele's rule, conception math, and why your due date might shift after your first ultrasound.
Labor
When to go to the hospital
The 5-1-1 rule, Braxton Hicks vs. real contractions, and when to call no matter what.
Overview
Pregnancy by trimester
What changes for your baby and your body in trimesters one, two, and three.