Pregnancy Date
Due Date Calculator
Estimated due date from your last menstrual period or conception date, using Naegele’s rule.
Naegele's rule: due date = LMP + 280 days…
Also called pregnancy due date · edd calculator
Health & Fitness · 4 calculators
Pregnancy Date Calculators
Informational date tools: due date, pregnancy week and trimester, conception date and weeks to months.
Pregnancy Date
Pregnancy Week Calculator
How many weeks and days pregnant you are today, your trimester and the weeks remaining.
Gestational age = days since LMP ÷ 7
Also called how many weeks pregnant · gestational age calculator
Pregnancy Date
Conception Date Calculator
Estimated conception date and fertile window from the last period or a known due date.
Conception ≈ ovulation ≈ LMP + (cycle len…
Also called when did i conceive · conception calculator
Pregnancy Date
Pregnancy Weeks to Months Calculator
Convert pregnancy weeks into months and trimesters — with the standard 4-week and calendar-month views.
Months = weeks ÷ 4.345
Also called weeks to months pregnancy · how many months is 30 weeks
Key pregnancy date formulas
| Due Date | Naegele's rule: due date = LMP + 280 days (adjusted for cycle length) |
|---|---|
| Pregnancy Week | Gestational age = days since LMP ÷ 7 |
| Conception Date | Conception ≈ ovulation ≈ LMP + (cycle length − 14 days) |
| Pregnancy Weeks to Months | Months = weeks ÷ 4.345 |