Calculate expected delivery date for pregnancy.
Due dates are calculated based on a 280-day (40-week) pregnancy from the last menstrual period, or 266 days (38 weeks) from conception.
Important Notes:
Whether you tracked your last period, conceived through IVF, or used an ovulation app, an easy-to-use tool gives a clear starting point so you can answer questions like how far along am I and what to expect next?"
Most people start with the date of their last menstrual period. A pregnancy calculator or a Pregnancy week Calculator by LMP uses that date to give a reliable estimate. If you know the exact day of conception, a Conception calculator or a Due date Calculator from conception can refine estimates. If you conceived via assisted reproduction, the Due date calculator IVF adjusts for embryo transfer timing to improve accuracy.
An accurate due date calculator not only gives your expected delivery date but also often includes a due date calculator week-by-week breakdown with developmental milestones and antenatal check suggestions. If your primary question is how many weeks pregnant am i, these tools update with each passing week and provide targeted advice for diet, appointments, and prenatal testing. Fitness and health calculator online features, when available, can integrate weight gain targets and activity recommendations tailored to pregnancy.