Pregnancy Symptoms by Week | Your Pregnancy Week-by-Week Guide

Pregnancy is an exciting journey filled with physical and hormonal changes. Many pregnant women want to understand what happens week by week during pregnancy and what symptoms to expect as their baby grows. While every pregnancy is different, a pregnancy week-by-week guide can help parents understand the common changes that occur during the first, second, and third trimesters. Tracking pregnancy symptoms by week can also help you feel more prepared and reassured as your pregnancy progresses toward your due date . Using tools like the Pregnancy Week Tracker on Parenting Hub can help parents follow their baby’s development and understand what is happening at each stage of pregnancy. Understanding Pregnancy Week by Week Pregnancy typically lasts around 40 weeks , beginning from the first day of your last menstrual period . During these weeks of pregnancy, your baby grows from a tiny group of cells into a fully developed newborn. Each trimester brings different symptoms and milestones. Pregnancy is generally divided into three stages: First trimester weeks 1 – 12 Second trimester weeks 13 – 27 Third trimester weeks 28 – 40 Your health care provider or midwife will monitor your pregnancy throughout these stages using ultrasounds, health checks, and prenatal appointments. First Trimester Symptoms Weeks 1–12 During the first trimester , your body begins adjusting to pregnancy hormones and supporting the early development of the baby and uterus. Common early pregnancy symptoms include: Fatigue Nausea and morning sickness Breast tenderness Frequent urination Mood changes Mild cramping Many women confirm pregnancy during this stage with a pregnancy test . Around week 6 , your baby’s heartbeat may be detected during an ultrasound . By week 12 , the baby’s major organs have started forming, and the risk of miscarriage decreases significantly. Second Trimester Symptoms Weeks 13–27 The second trimester of pregnancy is often called the most comfortable stage for many pregnant women. Morning sickness usually improves, and energy levels may return. Common symptoms during this stage include: A growing belly as the uterus expands Improved appetite Back pain Skin changes Feeling the baby move for the first time Many parents feel their baby’s first movements between week 17 and week 22 . During this stage, an ultrasound may reveal the baby’s development and help confirm the exp…