What is the Third Trimester in Pregnancy?
Third trimester of pregnancy: Third trimester is the third and last phase of pregnancy which lasts from week 28 till delivery, usually till week 40, or sometimes it can be 41-42 weeks also. In months, it happens from approximately 7th month to 9th month (around 3 months). At this time the baby is almost fully developed and is ready for birth. Mom’s body also undergoes a lot of changes as the baby’s size and weight increases. Let’s understand it in a simple
Contents
Third Trimester in Months
- Start: 7th month (around week 28).
- End: 9th month or till delivery (usually week 40, but can extend to 41-42 weeks).
This period is for the final growth of the baby and to prepare the mother’s body for delivery..
What Happens in the Third Trimester?
- Baby’s Development:
Baby’s lungs, brain, and bones are fully mature. Baby’s weight increases (usually 2.5-3.5 kg by birth). Baby movements are very clear, but due to less space the movements may be slow or feel different.
Baby usually comes in the head-down position for delivery.
- Changes in Mom’s Body:
Uterus gets bigger, which further enlarges the belly. The body prepares for delivery, like cervix softening or pelvic joints loosening. Hormonal changes prepare the body for labor.
Symptoms of Third Trimester
Certain symptoms are common in the third trimester due to the baby’s size and body changes. Here’s a list in simple
- Stomach growing (Large Belly)
The bump becomes very big, which can cause discomfort. Clothes feel tight.
wear maternity clothes and use a pregnancy pillow to sleep on the side.
- Back Pain and Pelvic Pressure
Due to increase in baby’s weight, back pain or pressure is felt in the pelvic area.
Maintain proper posture, do light stretches (with doctor’s advice), and avoid heavy lifting.
Fatigue
If the body does extra work, tiredness can come back. Take short naps and prioritize rest.
- Shortness of Breath
As the uterus becomes larger, there is pressure on the lungs, so there can be some difficulty in breathing. Sit upright or elevate the upper body a little while sleeping.
- Swelling (Sujhan)
Water retention can cause swelling (edema) in the feet, ankles, or hands.
Drink more water, eat less salt, and rest by elevating the feet. (If the swelling is sudden or severe, consult a doctor as it could be a sign of preeclampsia.)
- Heartburn and Constipation
The uterus puts pressure on the stomach and intestines, which can cause acidity or constipation. Eat small meals, eat fibre-rich foods (like fruits, vegetables), and drink water.
- Frequent Urination (Frequent Urination)
When the baby’s pressure on the bladder increases, trips to the bathroom increase.
Drink water, but reduce the quantity a little at night.
- Braxton Hicks Contractions (False Labour)
The stomach may feel tight or contracted, which is like practical contractions. These are milder than real labor. Drink water, change position, or rest. If it is regular or painful, talk to a doctor.
- Mood Swings or Anxiety
Thinking about delivery can cause nervousness or mood changes.
Talk to family, try meditation, or discuss with a doctor.
Role of Amino Acids in Third Trimester
Amino acids are the building blocks of proteins, and their role in the third trimester is very important for both mom and baby. Here’s why and how they help:
- For Baby’s Growth:
Amino acids are important for a baby’s tissues, muscles, organs, and brain development. Arginine and glutamine support the baby’s cell growth and immune system.
- For Mom’s Body:
Amino acids help repair and maintain mom’s body, especially as the body is preparing for delivery.
Amino acids like tryptophan can help regulate mood (for serotonin production).
- Energy and Recovery:
Branched-chain amino acids (BCAAs) such as leucine, isoleucine, and valine reduce muscle fatigue and provide energy.
Amino acids are also important for recovery after delivery.
- Breast Milk Production:
Amino acids such as methionine and lysine are important for milk production if mom is planning to breastfeed.
Amino Acid Sources for Third Trimester
- Protein-Rich Foods: Dal (moong, masoor), paneer, eggs, chicken, fish (safe varieties like salmon, confirm with doctor), tofu, and nuts (almonds, walnuts).
- Plant-Based Sources: Quinoa, beans, chickpeas, and green leafy vegetables (palak, methi).
- Dairy: Milk, yogurt, and cheese also provide amino acids.
Eat a balanced diet that includes protein, carbs, and healthy fats. If the doctor recommends, prenatal supplements can include amino acids.