During pregnancy, it is important to pay attention to gaining enough weight. Some pregnant women have difficulty gaining weight, so it can have an impact on health problems in infants in the womb. Normal weight gain during pregnancy is around 11-16 kilograms (kg). Pregnant women generally can gain weight 2-4 kg in the first trimester. Then, gaining about 0.5-1.5 kg every week to the point of birth. If weight does not rise as expected, there is a possibility it can cause health problems for both mother and baby. Including the risk of premature birth, to low birth weight in infants. Causes of Hard Weight Gain When Pregnant One of the causes of the difficulty of gaining weight during pregnancy is that women experience underweight since before pregnancy. In addition, there are several factors that can also inhibit weight gain in pregnant women, including: Nausea and vomiting Although it is quite natural to occur during early pregnancy, excessive nausea, vomiting during pregnancy,