I am 15 weeks pregnant, and finally started to show! I have realised something weird about my bump, something that looks like it has a waistband in the middle. I just find out it is called the B shaped belly, more common if you carry extra weight. I am not overweight, when I got pregnant I was size 8, most of my trousers are size 6 ( I have tiny waist) I was 58kgs, now 62. Have you experienced the same, and when did you get D shape?