Calculate your pregnancy due date from last period, conception date, or IVF transfer date. See trimester dates, weeks pregnant, and upcoming milestones.
Default: 28 days
8 weeks 0 days pregnant · 223 days remaining
| Due Date | Nov 8, 2026 |
| Weeks Pregnant | 8w 0d |
| Current Trimester | 1st Trimester |
| Days Remaining | 223 days |
| Conception Date (est.) | Feb 15, 2026 |
| 1st Trimester Ends | May 3, 2026 |
| 2nd Trimester Ends | Aug 9, 2026 |
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Naegele's Rule: Due Date = LMP + 280 days (40 weeks)
Adjusted for cycle length: LMP adjusted = LMP − (cycle length − 28) days
The standard Naegele's Rule: add 280 days (40 weeks) to the first day of your last menstrual period (LMP). This assumes a 28-day cycle with ovulation on day 14.
Only 5% of babies are born on their exact due date. About 80% are born within 2 weeks of the due date. Due dates are estimates, not guarantees.
Gestational age counts from LMP (last menstrual period). Conception age (fetal age) counts from fertilization, which is about 2 weeks later. Most doctors use gestational age.
An ultrasound can determine gestational age. Enter your conception date or ultrasound date instead to calculate your due date.
Full term is 39–40 weeks. Early term is 37–38 weeks. Late term is 41 weeks. Post-term is 42+ weeks.
Calculations are for educational purposes only. Consult a qualified financial advisor for personalized advice.