Its quite normal. As long as you don't have excruciating pain. Keep in mind your eating for two and sometimes some foods that you ate while you were not pregnant agreed with you but then when your pregnant it doesn't. As long as your not constipated or having diarhea (loose stool) I would say your doing ok. absortion, gas, and all sorts of stuff is going on in that cosmic belly since you are and have created a human being who is taking in all that, much success