Due Date Calculator based on Last Menstrual Period (LMP).
Enter the first day of your Last Menstrual Period and the length of your cycle in order to estimate your Due Date and the gestational age at present.
Note, all dates given are estimates; We will give you a more accurate indication of your due date when you have your 7-10 week ultrasound scan.
Gestational Age based on the Due Date
If you know your due date, you can calculate how many weeks of pregnancy you have completed so far.
Enter the date of your last menstrual period and the length of your cycle to show the period at which you are most fertile.