Pregnancy Conception Calculator
Calculate conception date, due date, and track your pregnancy progress
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Your Pregnancy Timeline
LMP Today Due Date
Conception Date
Due Date
Weeks Pregnant
Pregnancy Timeline
Trimester Information
First Trimester
Weeks 1-13: Early development, morning sickness
Second Trimester
Weeks 14-27: Baby movements, growing bump
Third Trimester
Weeks 28-40: Final growth, preparation for birth
About Pregnancy Calculation
Pregnancy is typically calculated from the first day of your last menstrual period (LMP), which is about 2 weeks before conception actually occurs. This calculator estimates:
- Conception date: Typically 11-21 days after the first day of your LMP
- Due date: Approximately 40 weeks from your LMP (38 weeks from conception)
- Trimester timeline: Pregnancy is divided into three trimesters of about 13-14 weeks each
Note: This calculator provides estimates only. For precise dating, consult with your healthcare provider who may use ultrasound measurements.
This tool is for informational purposes only. Always consult with healthcare professionals for medical advice.