What is the cause of weight gain in pregnancy?

Understanding Weight Gain During Pregnancy

Weight gain during pregnancy can vary significantly among women. Generally, most expectant mothers will see an increase of approximately 10kg to 12.5kg (which is around 22lb to 28lb), with the majority of this weight gained after the 20 week mark. A large portion of the additional weight is attributed to the development of the baby, while the body also accumulates fat reserves in preparation for producing breast milk following childbirth.