Celebrate every step of your pregnancy.
Detailed week-by-week guides about your baby's development, maternal body changes, and symptoms. Keep track of your pregnancy offline with our private due date calculator, kick counter, and contraction timer.
Calculate Due Date
Due Date Tracker
Input your dates below to instantly determine your gestational age and target due date.
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Due Date Calculator
Week-by-Week Directory
Click a week to view size comparisons, length and weight progress, baby milestones, and doctor tips.
Second Trimester (Weeks 14 - 27)
Trimester Overviews
A pregnancy is divided into three distinct phases. Explore our custom guides to prepare yourself.
First Trimester
Embryonic cell development, early organ creation, positive tests, and adjusting to hormonal surges (nausea & fatigue).
Second Trimester
The 'honeymoon' phase. Baby kicks start (quickening), energy returns, and the crucial mid-pregnancy anatomy scan takes place.
Third Trimester
Rapid fetal growth, lung maturation, structural body strain, nesting instinct spikes, and active labor preparation.
Trusted, Evidence-Based Information
PregWeeks provides science-backed content sourced directly from ACOG, WHO, and CDC clinical guidelines. We are committed to providing you with clear, accurate, and non-judgmental facts during this key milestone in your family life.