Physiological changes during pregnancy
Inhibition of FSH and LH secretion from anterior pituitary thus ovulation and menstruation is blocked.
As fetus grow changes are observed in the volume, size shape and weight of uterus.
The size and the blood supply to vagina is increased
4) Body weight
The average increase in body weight during pregnancy is about 24 pounds. The fetus is 7 pounds (3 killograms).
5) Digestive system
In early pregnancy, there is morning sickness occurs in the mother. This involves nausea, vomiting due to hormonal imbalance.