🤱 Pregnancy Calculator

Calculate due date, current pregnancy week, trimester information, and important milestone dates.

Enter the first day of your last menstrual period
Typical cycle length is 28 days
Date when conception occurred (if known)
Your known or estimated due date

Pregnancy Calculator Information

📅 Accurate Dating

Calculate due dates using the most common methods: last menstrual period, conception date, or known due date from ultrasound.

📊 Weekly Tracking

Track your current pregnancy week, trimester, and important milestones throughout your pregnancy journey.

👶 Development Info

Learn about your baby's development at each stage with week-by-week information and milestone tracking.

Pregnancy Calculator FAQ

How accurate is the due date calculation?
Due date calculations are estimates based on a 280-day (40-week) pregnancy from the last menstrual period. Only about 5% of babies are born on their exact due date, with most births occurring within 2 weeks of the estimated date.
Which calculation method is most accurate?
Conception date is most accurate if known precisely. However, the last menstrual period method is most commonly used since conception dates are often uncertain. Ultrasound dating in early pregnancy is considered most reliable.
When do the trimesters begin and end?
First trimester: weeks 1-12, Second trimester: weeks 13-26, Third trimester: weeks 27-40. Each trimester brings different developments and potential symptoms.
Should I rely solely on this calculator?
This calculator provides estimates for educational purposes. Always consult with your healthcare provider for official due dates and pregnancy monitoring. Ultrasounds and medical examinations provide more precise dating.