Calculate pregnancy milestones, reverse-engineer the last menstrual period from a due date, and convert dates into weeks with a polished medical-grade interface.
40 weeks
Estimated due date
12 weeks
NT scan window
19 weeks
Morphology scan
Clinical-grade timeline
Forward and reverse pregnancy milestone estimation.
Switch between forward and backward calculations, then use the week converter for precise planning.
Week converter
Use the inputs above to project a date from a pregnancy week count.
Date → Weeks
Select an LMP and a date to calculate.
This shows the pregnancy age on the selected date using standard 7-day week conversion.