Find your due date, current week, and pregnancy milestones
This calculator uses the standard Naegele's rule (LMP + 280 days) to estimate your due date. Conception date adds 266 days. IVF transfer adds 266 days for day-3 embryos or 264 days for day-5 embryos.
Only about 4% of babies are born on their exact due date — most arrive within two weeks either side. Your healthcare provider may adjust your due date based on ultrasound measurements.
This tool is for informational purposes only. Always consult your OB/GYN or midwife for medical guidance during pregnancy.