Calculate your baby's due date and track important pregnancy milestones.
Calculate your due date to see important milestones
Only about 5% of babies are born on their exact due date. Most babies are born within 2 weeks of the due date.
Ultrasound dating is most accurate in the first trimester. LMP dating assumes a 28-day cycle with ovulation on day 14.
Babies born between 37-42 weeks are considered full-term. Early term is 37-39 weeks, full term is 39-41 weeks.