Tool
Enter your LMP or conception date to find your due date, current gestational week, and prenatal milestones.
Naegele's Rule is the most common method for estimating a due date: count 280 days (40 weeks) from the first day of your last menstrual period. If you know your exact conception date, add 266 days (38 weeks) instead. In reality, only about 5% of babies arrive on their exact due date — most are born within two weeks before or after.
Pregnancy is divided into three trimesters: the first trimester (weeks 1-12) is when organs form and morning sickness is common; the second trimester (weeks 13-27) is often the most comfortable period as the bump becomes visible; the third trimester (weeks 28-40) sees rapid baby growth and increased fatigue for the mother.
This calculator is for reference only and does not constitute medical advice. Every pregnancy is different, and your actual due date and prenatal schedule should be determined by your healthcare provider. If you have any health concerns, please consult a medical professional.