Dont worry, youre stressing yourself over nothing. Every woman has a different body, which means everyone shows diffrently. Usually first time pregnancies, you might not show as fast as someone whos having there 2nd or 3rd. Also, if youre not very fit, it might take a little longer to show, which is fine, it doesnt mean youre baby is small. With my first, I barely started showing at 6 months. Now with my 2nd, at 3 1/2 months I was beginning to show already. So dont worry , youre fine :d