Pregnancy & Cycle
Explore due dates, pregnancy timelines, ovulation, periods, and conception windows. Educational dating tools with clear limitations—always confirm prenatal care with your clinician.
Due Date Calculator
Estimate a pregnancy due date from last period, ultrasound dating, conception date, or IVF embryo transfer.
Open calculator →Pregnancy Calculator
Track gestational age, trimester, and milestone dates from LMP, due date, ultrasound, conception, or IVF.
Open calculator →Ovulation Calculator
Project ovulation days and fertile windows for upcoming cycles from your last period and cycle length.
Open calculator →Period Calculator
Forecast upcoming period and ovulation dates using your last period start, cycle length, and bleeding days.
Open calculator →Conception Calculator
Highlight peak fertile days across cycles and show the estimated due date if conception happens that month.
Open calculator →How to choose a pregnancy & cycle calculator
Pick the tool that matches your question, read the how-it-works section on that page for assumptions and limits, then adjust inputs until the scenario looks like your real numbers. Results are for education and planning—not personalized professional advice.
- Due Date Calculator — Estimate a pregnancy due date from last period, ultrasound dating, conception date, or IVF embryo transfer.
- Pregnancy Calculator — Track gestational age, trimester, and milestone dates from LMP, due date, ultrasound, conception, or IVF.
- Ovulation Calculator — Project ovulation days and fertile windows for upcoming cycles from your last period and cycle length.
- Period Calculator — Forecast upcoming period and ovulation dates using your last period start, cycle length, and bleeding days.
- Conception Calculator — Highlight peak fertile days across cycles and show the estimated due date if conception happens that month.