How Many Weeks Pregnant Am I? - Week Calculator

This calculator will calculate how many weeks have passed since the start of your pregnancy (based on your last menstrual period, conception date, ultrasound gestational age or ivf transfer date.

Choose your due date method

Average Length of Cycle days (default 28)

Average Luteal Phase Length days (default 14)

or see example results

This calculator provides estimates based on standard pregnancy dating methods. Individual pregnancies may vary. This tool is for informational purposes only and is not a substitute for professional medical advice. Consult your healthcare provider for an accurate assessment.