What to Expect in Your Third Trimester: Preparing for Delivery
The third trimester is the home stretch of pregnancy. It begins at week 28 and lasts until delivery, usually around week 40. For many women, these final months are a mix of excitement, anticipation, and new physical and emotional challenges. Your baby is rapidly growing, your body is preparing for labor, and your mind is focused on what to expect in the weeks ahead.
Most women enter the third trimester with a healthy pregnancy, but 8–10% will develop complications such as preeclampsia, gestational diabetes, or preterm labor, making close monitoring essential.
Understanding the changes you’ll experience, what to expect at the hospital, and how prenatal care supports you during this stage can help you feel more confident as delivery approaches.
Physical Changes in the Third Trimester
The last trimester often brings noticeable physical changes. Your baby is gaining weight quickly, which means your belly continues to expand. This growth can cause back pain, leg cramps, and swelling in your feet and ankles. Shortness of breath may increase as your uterus presses against your diaphragm. Sleep can become more difficult, both because of discomfort and frequent bathroom trips.
For swelling, elevate your feet above heart level several times daily. Use compression socks for persistent swelling. Report sudden or severe swelling, especially in your hands or face. If sleep is a problem, try sleeping on your left side with a pillow between your knees and avoid large meals or caffeine before bed.
You may also notice Braxton Hicks contractions. These are often called “practice contractions.” They are usually irregular, mild, and go away with rest. Unlike true labor contractions, they don’t get stronger or closer together over time. Learning the difference between Braxton Hicks and early labor contractions is important, and your provider will help you recognize the signs.
Emotional Changes and Mental Preparation
The third trimester brings emotional shifts. Some women feel a surge of energy and excitement, while others may feel anxious about labor or caring for a newborn. Mood swings are common as hormones fluctuate and sleep becomes more challenging.
Consider making a plan for mental health: have a list of contacts for emotional support, and identify local postpartum counseling or support groups now in case you need them later.
It’s important to acknowledge these feelings and seek support when needed. Talking with your provider, partner, or a trusted friend can ease stress. Many women also benefit from childbirth education classes, which provide practical knowledge and emotional reassurance.
