Pregnancy Due Date Calculator When the Last Period Began on March 13, 2025

If the first day of your last period (L.M.P.) was March 13, 2025, your due date will be:

December 18, 2025 (that's Thursday)

In days: 111 days

In weeks: 15 weeks and 6 days

In months: 3 months, 2 weeks and 5 days

Due dates for nearest periods