I am 15 weeks today with my first and am slightly disappointed that I am not showing at all nor can I ever feel the bubble like movements of baby that I've read about at this stage. But for the last sort of 3-4 weeks I occasionally (usually as I'm settling down to sleep at night) get a kind of gentle pushing/cramping feeling in lower abdomen almost as if some one is pushing slightly on my stomach area below the belly button. It's not painful at all but just not a feeling I am used to with this being my first. When this happens I put my hand on my stomach and can always feel a hard bump about the size of an apple and can see the bump slightly sometines too as I am quite thin especially when laying down. It usually passes after about 10 minutes and the bump goes back in and the feeling goes away. Am wondering is that baby I can feel? Or is it just a cramping and tightening of the muscles?