Pregnancy calculator

How many weeks pregnant
am I?

Work out your estimated due date and how far along you are, then see when each Phoenix pregnancy scan is available for you. Results are an estimate — a dating scan gives the most accurate due date.

Calculate based on

Most cycles are 28 days. Longer or shorter cycles move the due date.

Enter a date and press Calculate to see your due date, how many weeks pregnant you are and your personal scan timeline.

This calculator gives an estimate for general information only and is not medical advice. Dates can differ from those given by your midwife or a dating scan. If you have pain, bleeding or feel unwell, contact your GP, NHS 111 or, in an emergency, call 999.