The feeling of bloating in early pregnancy is caused by several normal things that are going on. One is that the uterus is growing along with the baby, so as it expands you feel bloated. Next you are gaining weight, because the baby is growing, so you feel that bloat too. Third you may have gas and constipation, due to changes in hormones that may have an effect on the digestive tract. So that can cause you to feel bloating too.
