Due Date Calculator

Estimate your due date using multiple methods: last menstrual period, conception date, IVF transfer, or ultrasound measurement.

Unlike most calculators, BirthRight shows your full birth window (39-43 weeks) rather than a single date. First babies average 41 weeks and 1 day. A "due date" is an estimate, not a deadline.

Calculation Methods

• Last menstrual period (Naegele's rule)
• Conception date
• IVF transfer date (3-day or 5-day)
• Ultrasound measurement

Results include a milestone timeline, birth window visualization, and educational context about induction.