Categories · 7 tools
Pregnancy & Baby Calculators
Ovulation, fertile window and due dates.
Ovulation
Find your ovulation day and fertile window for the next three cycles from your last period and cycle length. A planning estimate for trying to conceive.
CalculatePregnancy & BabyDue Date
Estimate your due date from the first day of your last period using Naegele’s rule (280 days). See your current gestational age and trimester too.
CalculatePregnancy & BabyGestational Age
Find out how many weeks and days pregnant you are from the first day of your last period, with the trimester and the estimated due date.
CalculatePregnancy & BabyConception Date
Estimate when conception likely happened, from your last period or your due date. See the most likely date and the window around it.
CalculatePregnancy & BabyPregnancy Weight Gain
Find the healthy amount of weight to gain in pregnancy based on your pre-pregnancy BMI, using the IOM ranges — plus the gain expected by your current week.
CalculatePregnancy & BabyFertility Window
Find your fertile window and peak fertility days from the first day of your last period and your cycle length — the best days to try to conceive.
CalculatePregnancy & BabyWeeks to Months
Convert your week of pregnancy into months, following the prenatal convention where 40 weeks equals 9 months, and see which trimester it falls in.
Calculate