Third Trimester of Pregnancy: What to Expect and How to Prepare

Congratulations, you’re in the final stretch of your pregnancy! The third trimester, which spans from week 28 to week 40 (or until delivery), is a whirlwind of changes, emotions, and preparations. Your baby is growing rapidly, and your body is getting ready for the big day. This guide will walk you through everything you need to know about the third trimester—from fetal development and common symptoms to tips for self-care and what to expect during prenatal visits.

The third trimester marks the last phase of your pregnancy, and it’s all about growth and preparation—for both you and your baby.

By the end of this trimester, your baby will likely weigh between 6 and 9 pounds and measure about 19 to 21 inches long. Here are some key developmental milestones:

• Brain Development: Your baby’s brain grows rapidly, preparing for life outside the womb.

• Lung Maturation: The lungs are developing, and by week 36, they’re almost ready to support breathing.

• Positioning: Around week 36, your baby starts moving into the head-down position, preparing for birth.

• Senses: By now, your baby can see, hear, and even respond to light and sound.

• Body Changes: The vernix caseosa (a protective coating) covers the skin, and lanugo (fine body hair) begins to shed. Nails, muscles, and fat layers continue to develop, giving your baby a chubbier appearance.

Your body undergoes significant changes to support your growing baby and prepare for delivery. These include:

• Abdominal Growth: Your uterus expands to the size of a watermelon.

• Hormonal Shifts: These can lead to mood swings, increased fatigue, and physical discomfort.

• Weight Gain: Expect to gain about 0.5 to 1 pound per week, adding up to 25-35 pounds by the end of pregnancy.

Pregnancy symptoms can intensify in the third trimester. Here’s what you might experience:

1. Shortness of Breath: As your uterus grows, it pushes against your diaphragm, making deep breaths harder.
2. Braxton Hicks Contractions: These “practice contractions” are irregular and usually painless.
3. Heartburn and Indigestion: Your growing baby puts pressure on your stomach, causing reflux.
4. Swelling (Edema): Fluid retention can lead to swollen ankles, feet, and hands.
5. Frequent Urination: The baby’s position can press against your bladder.
6. Back Pain: Your growing belly shifts your center of gravity, straining your back muscles.
7. Fatigue: It’s common to feel tired as your body works overtime.
8. Nesting Instinct: You might feel a sudden burst of energy and the urge to prepare your home for the baby.

1. Excitement: You’re closer than ever to meeting your baby!
2. Anxiety: It’s normal to worry about labor, delivery, and parenthood.
3. Mood Swings: Hormones can amplify your emotions.

The third trimester can be demanding, but self-care is crucial for your well-being. Here are some tips:

• Stay Active: Engage in light exercises like walking or prenatal yoga to improve circulation and reduce swelling.
• Eat Nutritious Meals: Focus on a balanced diet rich in fruits, vegetables, lean proteins, and whole grains.
• Stay Hydrated: Drink plenty of water to prevent dehydration and swelling.
• Sleep Comfortably: Use pillows to support your belly and back, and sleep on your side to improve blood flow.
• Manage Symptoms: Elevate your feet to reduce swelling, and eat small, frequent meals to combat heartburn.

• Practice Relaxation Techniques: Deep breathing, meditation, or prenatal massage can help ease stress.
• Connect with Loved Ones: Share your feelings and lean on your support system.
• Prepare for Labor: Take childbirth classes and create a birth plan to feel more confident.

Your prenatal visits will become more frequent as your due date approaches. Here’s what to expect:

• Biweekly Visits: From week 28 to 36, you’ll likely see your provider every two weeks.
• Weekly Visits: From week 36 until delivery, you’ll have weekly appointments.

During these visits, your healthcare provider will:

• Check your blood pressure, weight, and urine.
• Measure your baby’s growth and position.
• Monitor the fetal heart rate.
• Test for Group B Strep around week 36.
• Discuss your birth plan and answer any questions.

As your due date nears, it’s important to recognize the signs of labor:

1. Regular Contractions: Unlike Braxton Hicks, true labor contractions are consistent, increase in intensity, and don’t go away with movement.
2. Water Breaking: This may feel like a gush or trickle of fluid.
3. Bloody Show: A sign that your cervix is dilating.

Contact your healthcare provider if you experience any of these signs or if you’re unsure about what’s happening.

Call your doctor right away if you experience:

• Severe abdominal pain or cramping.
• Heavy bleeding.
• Sudden swelling of your face, hands, or feet.
• Severe headaches or vision changes.
• A decrease in fetal movement.

Are you excited to get a glimpse of your baby before the big day? Schedule a prenatal ultrasound with Fetal Vision Imaging to see your baby’s development in stunning detail. Located at 9815 Roosevelt Blvd, Philadelphia, PA 19114, we offer advanced 3D/4D imaging to create unforgettable memories for you and your family.

• State-of-the-Art Technology: High-definition imaging for the clearest view of your baby.
• Comfortable Environment: A relaxing setting designed for you and your loved ones.
• Memorable Keepsakes: Take home high-quality photos and videos to cherish forever.

Don’t wait—book your appointment today by calling us through (215) 945-8200 or by clicking the button below. Experience the joy of seeing your baby’s little face for the first time!

The third trimester of pregnancy is a time of excitement, anticipation, and preparation. While it comes with its challenges, it’s also a time to celebrate the incredible journey you’ve been on. By staying informed and taking care of yourself, you’ll be ready to welcome your baby into the world with confidence. And remember, a visit to Fetal Vision Imaging can make this final stretch even more special!