Pregnancy & Fertility Calculators
Due dates, ovulation and conception.
Track a pregnancy from the last menstrual period, estimate due and conception dates, and find the fertile window across a cycle.
Conception CalculatorEstimate the likely conception date and fertile window from your last period and cycle length.Due Date CalculatorEstimate your due date from your last menstrual period using Naegele's rule.Ovulation CalculatorEstimate your ovulation day, fertile window and next period from your last period and cycle length.Period CalculatorProject your next several period start dates and approximate ovulation days from your cycle length.Pregnancy CalculatorEstimate your due date, conception date, gestational age and trimester from your last menstrual period.Pregnancy Conception CalculatorEstimate the likely conception date from either your last menstrual period or your due date.Pregnancy Weight Gain CalculatorFind the recommended total pregnancy weight gain for your pre-pregnancy BMI and how much is expected by a given week.