Pregnancy Due Date Calculator

Use this calculator to determine your Pregnancy Due Date at 40 weeks.

  • Pregnancy starts from the First Day of Last Period, also known as Last Menstrual Period (LMP). This is your most recent period.
  • Full term pregnancy is 40 weeks (or how long you will be pregnant for).

When was your last period?

Calculate Possible Due Dates from Nearby Last Period Dates: