Stages of Pregnancy: Third Trimester

Question 1

When is the third trimester?

Answer 1

• weeks 29 to 40 of pregnancy

Question 2

What changes occur during the third trimester regarding weight gain?

Answer 2

• final weight gain takes place
• (which is the most weight gain throughout the pregnancy)

Question 3

What changes occur during the third trimester regarding movement of the foetus?

Answer 3

• the pregnant woman feels the more frequent and stronger movements of the foetus, which can be disruptive

Question 4

What changes occur during the third trimester regarding breathing?

Answer 4

• many women find breathing difficult
• as the foetus presses up against the diaphragm and lungs

Question 5

What changes occur during the third trimester regarding abdominal shape?

Answer 5

• the woman’s abdomen changes shape as it drops down quite low
• due to the foetus turning in a downward position ready for birth

Question 6

What happens to the foetus as it turns downward to prepare for birth?

Answer 6

• the foetal head descends into the pelvic cavity
• (this is known as engagement of the head)

Question 7

What happens as a result of the foetal head descending into the pelvic cavity?

Answer 7

• less pressure on the upper abdomen and breathing becomes easier
• reduced bladder capacity which can result in weak bladder control
• often backache

Question 8

What changes occur during the third trimester regarding the pregnant woman’s breasts?

Answer 8

• breasts can become tender
• may leak a water pre-milk called colostrum

Question 9

What changes occur during the third trimester regarding contractions?

Answer 9

• muscles of the mother’s uterus start contracting

Question 10

What is it called when a pregnant woman starts experiencing contractions of her uterus in the final trimester?

Answer 10

• these are called Braxton-Hicks contractions

Question 11

Why do Braxton-Hicks contractions occur?

Answer 11

• as practice to help the mother’s body prepare for labour