Pregnancy Trimester Calculator

Pregnancy Trimester Calculator — Track Your Pregnancy Week by Week

Track your pregnancy journey week by week. Calculate your current trimester, important milestone dates, and get personalized pregnancy information.

Step 1: Pregnancy Dates

Calculation Method

Select Date

Average Cycle Length (days)

28 days

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 40 weeks (280 days).

Step 2: Personal Details

Mother’s Age

30 years

Pregnancy Number

Show pregnancy milestones

Show trimester progress chart

Trimester Information

First trimester: Weeks 1-13. Second trimester: Weeks 14-27. Third trimester: Weeks 28-40+. Each trimester has unique developmental milestones and symptoms.

Pregnancy Trimester Results

Summary

Milestones

Timeline

Current Pregnancy Trimester

1st

Week 8 of 40 • Due Date: November 15, 2023

Weeks Pregnant

8 weeks

Days Pregnant

56 days

Trimester Start

Week 1

Trimester End

Week 13

Pregnancy Milestones & Development

Week	Developmental Milestone	Common Symptoms	Trimester

Pregnancy Timeline Overview

Important Pregnancy Dates

Key Dates to Remember

First prenatal visit: 8 weeks • Anatomy scan: 18-22 weeks • Glucose test: 24-28 weeks • Start of third trimester: 28 weeks • Full term: 37-40 weeks.

Need Professional Prenatal Care?

Always consult with your healthcare provider for personalized medical advice. This calculator provides estimates only and is not a substitute for professional medical care.

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