Pregnancy dating calender
This interactive Due Date Calculator will help you estimate the date your baby will arrive.
The calculator on this page can help you work out when you might expect your baby to arrive. As part of your antenatal care, your midwife will also offer you a dating scan that will give you a more accurate date for the birth of your baby.
Your EDD is 40 weeks from the first day of your last menstrual period (LMP).
It's important to remember that your due date is only an estimate — most babies are born between 38 and 42 weeks from the first day of their mom's LMP and only a small percentage of women actually deliver on their due date.
This information should not be used for the diagnosis or treatment of any health problem or disease.
THIS INFORMATION IS NOT INTENDED TO REPLACE CLINICAL JUDGMENT OR GUIDE INDIVIDUAL PATIENT CARE IN ANY MANNER. Medscape's clinical reference is the most authoritative and accessible point-of-care medical reference for physicians and healthcare professionals, available online and via all major mobile devices. The clinical information represents the expertise and practical knowledge of top physicians and pharmacists from leading academic medical centers in the United States and worldwide.
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If you would like to save your due date, you will need to log in or create an NHS Choices account - you can do this in the box below.