Third Trimester (28–40+ weeks): the final stage of pregnancy and preparation for labor

Third Trimester: what happens to the mother's and baby's bodies

The third trimester of pregnancy covers the period from the 28th week until the baby is born. This is a time when the baby grows rapidly, and the mother's body prepares for labor. A pregnant woman may notice weight gain, changes in her figure, as well as new sensations related to the stretching uterus and preparation for feeding.

By the end of the third trimester, the baby is usually in a head‑down position, its organs are fully formed, and the lungs mature for independent breathing. The mother may notice the onset of Braxton‑Hicks contractions, which prepare the uterine muscles for labor activity.

Physical changes and how to ease discomfort

In the third trimester, body weight increases, fatigue appears, back pain, leg swelling, and shortness of breath occur. To alleviate these symptoms, follow these tips:

• Rest more often: lie on your left side to improve circulation and relieve pressure on the major vessels.
• Manage swelling: elevate your legs above heart level, limit salt intake, and drink enough water.
• Wear comfortable shoes and clothing: avoid tight items that compress the abdomen or legs.
• Practice breathing exercises: they help reduce shortness of breath and prepare you for labor.

If you experience severe pain, sudden swelling, or other concerning symptoms, be sure to consult a doctor.

Emotional state: how to support yourself and your partner

The final trimester often comes with anxiety, impatience, and the joy of anticipation. To maintain emotional balance:

• Communicate with your partner: discuss your fears and expectations. Remember that emotional health support is important for both parents.
• Attend prenatal classes: they will help you feel more confident before labor.
• Create relaxation rituals: meditation, gentle walks, or a warm bath can relieve tension.

If you notice signs of depression or anxiety, do not hesitate to reach out to a psychologist. Your emotional state affects not only you but also the baby.

Preparing for labor: what you need to know and do

By the 36th week, you should finalize preparations for the baby's arrival. Here are the key steps:

• Create a birth plan: discuss with your doctor your preferences regarding pain relief, birthing positions, etc.
• Pack a “birth bag”: include documents, clothing for yourself and the baby, hygiene supplies.
• Identify signs of labor onset: regular contractions, water breaking, or the mucus plug—these are signals that the time is near. Read more about this in our article Stage: Preschooler (3-6 years)