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.
Preparing for Labor and Delivery
Preparation during the third trimester can help you feel calmer and more in control as your due date approaches. This is a good time to tour the hospital or birth center, pack your hospital bag, and review your birth plan with your provider.
Your birth plan does not have to be rigid. Instead, think of it as a guide to your preferences for pain management, labor positions, and who you want present during delivery. Flexibility is key, since labor can be unpredictable.
Prenatal Care in the Third Trimester
During the third trimester, prenatal visits become more frequent. Your provider will monitor your blood pressure, check for signs of complications like gestational diabetes or preeclampsia, and track your baby’s growth and position. You may also receive tests for anemia, infections, or Group B strep, which helps guide care during delivery.
These visits are a chance to ask questions and discuss any concerns. Whether you are experiencing new symptoms, wondering about labor signs, or needing reassurance, your provider is there to support you.
What to Expect at the Hospital
Every hospital has its own routines, but most follow similar steps when you arrive in labor. You’ll be admitted, your contractions will be monitored, and your provider will assess your progress. Nurses and medical staff will guide you through the process and keep you informed of your options for pain management and interventions if needed.
If you need a cesarean delivery, your provider will explain the procedure and what to expect in recovery. Whether you have a vaginal or cesarean birth, the goal is always the same: a safe delivery for you and your baby.
Tips for the Final Weeks
In addition to prenatal visits and birth planning, the third trimester is a time to focus on small steps that support both your health and your baby’s readiness for delivery.
- Stay active: Gentle exercise such as walking or prenatal yoga can improve circulation, reduce discomfort, and prepare your body for labor.
- Eat well: A balanced diet rich in protein, whole grains, fruits, and vegetables supports your energy and your baby’s growth.
- Stay hydrated: Adequate fluids help with circulation and reduce swelling.
- Practice relaxation techniques: Breathing exercises, meditation, or listening to calming music can ease stress and prepare you for labor.
- Get organized at home: Setting up your baby’s space, arranging childcare if needed, and preparing meals ahead of time can make the postpartum period easier.
Recognizing Signs of Labor
As you near your due date, it’s important to know when labor may be starting. True labor contractions come at regular intervals, gradually get closer together, and grow stronger over time. They do not go away with rest or hydration. Other signs of labor include your water breaking, lower back pressure, and a bloody show.
If you experience strong contractions, heavy bleeding, decreased fetal movement, or signs of preterm labor before 37 weeks, contact your provider immediately.
The Role of Support
Support during the third trimester makes a significant difference. Partners, family members, or friends can help with physical tasks, provide emotional comfort, and attend prenatal visits with you. Many women also benefit from working with a doula, who provides continuous support during labor.
Building your support network before delivery helps you feel more confident and prepared for both labor and the postpartum transition.
Looking Ahead to Postpartum Recovery
It’s natural to focus on delivery, but it’s just as important to think about recovery. The postpartum period is a time of healing, adjustment, and bonding with your baby. Planning for support at home, whether through family, friends, or professional resources, can ease this transition.
Your provider will continue to be a resource after delivery. Postpartum visits are an opportunity to check on your recovery, discuss mental health, and provide guidance on breastfeeding or contraception.
Schedule your appointment with MyOBGYN today to talk about your third trimester, prepare for labor, and create a plan that supports you and your baby during this exciting stage of life.
