Pregnancy Due Date Calculator: EDD, EDC, IVF, or LMC

Here’s a quick and easy guide that shows the estimated due date (month) of when your baby will be born based on the conception month. The traditional way of calculating the estimated due date (40 weeks after the last menstrual period) is not evidence-based. Instead, it is more accurate to give people a range of time that they will probably give birth: About half of first-time mothers will give birth by 40 weeks and 5 days after the LMP, with the other half giving birth after that time point. Abo