Pregnancy Week Calculator
Calculate your current pregnancy week, due date, trimester, and track important milestones. Get personalized pregnancy information based on your last menstrual period or conception date.
Step 1: Pregnancy Details
Understanding Pregnancy Dating
Pregnancy is typically calculated from the first day of your last menstrual period (LMP), which is about 2 weeks before conception. A full-term pregnancy is approximately 40 weeks.
Step 2: Calculation Parameters
About Cycle Length
The average menstrual cycle is 28 days, but normal cycles range from 21 to 35 days. Your cycle length can affect your due date calculation, especially if your cycles are consistently longer or shorter than 28 days.
Pregnancy Calculation Results
Current Pregnancy Week
Pregnancy Milestones Timeline
| Week | Milestone | Developmental Stage | Common Symptoms |
|---|
Pregnancy Trimester Breakdown
Pregnancy Calculation Formula
Due Date = LMP + 280 days (or LMP + 40 weeks)
Pregnancy is calculated as 40 weeks from the first day of your last menstrual period. Conception typically occurs about 2 weeks after LMP, making the actual fetal age 38 weeks at delivery.
Need Professional Pregnancy Advice?
Always consult with your healthcare provider for personalized medical advice. This calculator provides estimates and should not replace professional medical consultation.
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