Answer:
During pregnancy, progesterone helps enhance the functions of the placenta. It does not allow unwanted cells to grow near the womb and thus, rules out the possibility of any kind of damage to the placenta and fetus. It plays an important role in the growth of the breast tissue and helps maintain the thickness of the endometrium throughout the pregnancy. It prevents abnormal or spontaneous movements of the uterus or untimely contraction of the uterus.
Step-by-step explanation: