Gestational age
See how many weeks and days pregnant you are from LMP or from your estimated due date.
Purpose, how to use it, and benefits — the interactive tool is in the card above whenever you want to jump back.
This tool converts either your LMP or your known due date into “weeks and days pregnant” as of today, using standard obstetric counting where day zero is the first day of LMP.
Pick whether you know your LMP or your EDD, enter the date, and tap Calculate weeks. The result shows completed weeks plus extra days, which matches how clinicians describe gestational age on many reports.
You can line up your result with ultrasound paperwork, understand trimester labels, and time when common tests such as glucose screening are usually offered.
Pregnancy is usually dated from LMP for convenience even though conception typically occurs about two weeks later. IVF pregnancies may use transfer-based dating instead—use our IVF due date tool if that applies.