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Pregnancy & Fertility
Browse 17 working calculators for pregnancy & fertility. Every tool shows a live result, its calculation steps, and the sources behind the method.
Pregnancy
17 calculators
Pregnancy CalculatorEstimates the due date from the last menstrual period, a known conception date, an ultrasound gestational age or an IVF embryo transfer, with gestational age, trimester and term milestones.Ovulation & Fertile Window CalculatorPredicts ovulation, the six-day fertile window, the peak fertility days and the implantation window from the last period and cycle length, and projects them across the next several cycles.Birthday Pregnancy CalculatorWorks backwards from a due date, a birth date or a last menstrual period to the probable date of conception, the intercourse window that could have produced it and the implantation window that followed.Conceive CalculatorWorks backwards from a due date, a birth date or a last menstrual period to the probable date of conception, the intercourse window that could have produced it and the implantation window that followed.Dating Pregnancy CalculatorReports how many weeks and days pregnant someone is on a given date, with trimester, fetal age, days remaining and the next dating milestone, from the LMP, a due date, a conception date, an ultrasound or an IVF transfer.Menses CalculatorPredicts upcoming period start and end dates, reports the current cycle day and phase, derives the fertile window, and assesses cycle regularity against the FIGO normal ranges.Menstrual Flow CalculatorPredicts upcoming period start and end dates, reports the current cycle day and phase, derives the fertile window, and assesses cycle regularity against the FIGO normal ranges.IVF Birth CalculatorEstimates the due date from the last menstrual period, a known conception date, an ultrasound gestational age or an IVF embryo transfer, with gestational age, trimester and term milestones.Bovine Gestation CalculatorCalculates the expected calving, foaling, whelping, kidding or lambing date from a breeding or service date using published species gestation lengths, with the normal range where one has been published.Clearblue Fertility CalculatorPredicts ovulation, the six-day fertile window, the peak fertility days and the implantation window from the last period and cycle length, and projects them across the next several cycles.Due Conception Date CalculatorWorks backwards from a due date, a birth date or a last menstrual period to the probable date of conception, the intercourse window that could have produced it and the implantation window that followed.Canine Pregnancy CalculatorCalculates the expected calving, foaling, whelping, kidding or lambing date from a breeding or service date using published species gestation lengths, with the normal range where one has been published.Gestation Goat CalculatorCalculates the expected calving, foaling, whelping, kidding or lambing date from a breeding or service date using published species gestation lengths, with the normal range where one has been published.Pregnancy Check CalculatorWorks out the earliest day a home pregnancy test could be positive, the day of the missed period and the day a negative result becomes trustworthy, from the implantation window and the published detection rates rather than a rule of thumb.Flo Period CalculatorPredicts upcoming period start and end dates, reports the current cycle day and phase, derives the fertile window, and assesses cycle regularity against the FIGO normal ranges.Gestation Horses CalculatorCalculates the expected calving, foaling, whelping, kidding or lambing date from a breeding or service date using published species gestation lengths, with the normal range where one has been published.Bishop's Score CalculatorScores cervical favourability for induction of labour from dilation, effacement, station, consistency and position, gives the 0-13 classical Bishop total with its interpretation, and separately applies the modified-Bishop adjustments for pre-eclampsia, parity, postdates and PPROM.