I've had unprotected sex with my boyfriend a few times. I have had almost every sign of early pregnancy, but I need some opinions. I'm 5ft2, 120-125lbs,so I do have a little bit of a belly, but for the past few weeks my stomach has been flat and it looks like it does stick out just a little more below my belly button than it does above. When I lay down on my back, there is a very noticeable bump (that changes sizes: big to small, small to big???)