Women's Health Calculators
Track periods, ovulation, fertility and pregnancy — privately and instantly.
Private, free cycle and pregnancy math — no account, no tracking, everything computed in your browser. Log your last period and cycle length in the Period Calculator for upcoming predictions, then narrow your fertile window with the Ovulation Calculator and Fertility Window Calculator.
Expecting? The Pregnancy Week Calculator converts your due date or last period into your current week and trimester, and the Pregnancy Weight Gain Calculator maps the recommended gain range to your stage. These are planning aids with general information — for personal medical guidance, your healthcare provider is the right call.
Period Calculator
Forecast your next few periods from your last period's date and your average…
Try itOvulation Calculator
Pinpoint your ovulation date and most fertile days from your last period and c…
Try itFertility Window Calculator
Spot your fertile window and best conception days based on your cycle.…
Try itPregnancy Week Calculator
Learn how many weeks and days along you are, and which trimester you are i…
Try itPregnancy Weight Gain Calculator
Check your suggested healthy weight-gain range based on pre-pregnancy BMI a…
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