Estimated Baby ArrivalPregnancy Due Date CalculatorA Pregnancy Due Date Calculator estimates your baby’s arrival using your last period or conception date.It provides a useful guide for planning prenatal care and tracking pregnancy milestones.Last menstrual period date: Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Month 1 2 3 4 5 6 7 8 9 10 11 12 Year2026