- Baby belly week by week – Baby belly exercises – Losing pregnancy weight fastbr Belly fat has been shown to be the most unsafe type of fat. Medical experts aren’t certain why, but stomach fat has been linked to various health problems.br Having recently given birth, you are almost certain to have at least a little flab on your tummy, and losing baby weight around your belly is probably a top priority for you. If so, here are some practical and effective exercises to get rid of belly fat and reduce your risk of serious health problems.