Pregnancy due-date calculator
The OB wheel: due date and gestational age from your last period, a known due date, an ultrasound, conception or IVF — plus a reverse “when will I be X weeks?” look-up.
Open →Pregnancy tools & calculators
A small set of free, private pregnancy tools. Every one runs entirely in your browser — no accounts, no tracking, and nothing you enter ever leaves your device.
Ovulation & fertile-window calculator
Find your most fertile days and estimated ovulation from your cycle, then jump straight to a due date if you conceive.
Open →hCG doubling-time calculator
Enter two beta-hCG results to see the doubling time and daily rise in early pregnancy. Educational — interpret with your clinician.
Open →Contraction timer
Time how long contractions last and how far apart they are, with a 5-1-1 pattern note. For late pregnancy and early labour.
Open →Baby predictions (just for fun)
The Chinese gender chart, your baby’s star sign, Chinese zodiac animal, birthstone and birth flower. Entertainment, not science.
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