TheCalcUniverse

Pregnancy Calculator — Due Date, Trimester & Milestones

Track your pregnancy week by week. Calculate due date, current trimester, gestational age, and key milestones from your last menstrual period.

✓ Formula verified: January 2026For informational purposes only

Pregnancy Calculator

Enter values and click Calculate

Enter Values

Related Calculators

Reviews

No reviews yet. Be the first to share your experience with Pregnancy Calculator — Due Date, Trimester & Milestones.

Write a Review

Related Calculators

Due Date Calculator

Calculate your estimated due date from LMP, conception date, or IVF transfer date. View current pregnancy week, trimester milestones timeline, and days.

Pregnancy Weight Gain

Track your pregnancy weight gain against IOM guidelines based on pre-pregnancy BMI. Features worked examples, quick reference BMI-based ranges.

Conception Calculator

Calculate your fertile window, peak fertility days, and estimated ovulation date using LMP, cycle, or next period methods.

Related Guides (2)

Pregnancy Due Date Guide: How Due Dates Are Calculated and Trimester Milestones

Only 5% of babies arrive on their exact due date. Here is how due dates are calculated, why they are estimates, and what each trimester means for you and your baby.

Pregnancy Due Date Calculator: How Accurate Are They?

Only about 5% of babies arrive on their exact due date. Here is how due dates are calculated, why they are rarely exact, and what that 40-week timeline really means.