Yesterday morning before I got up I had at least 2 minutes of not quite painful pressure in the middle of my abdomen below my belly button (about where the top of my uterus is). It also felt harder than normal and like it was sticking out more.  I'm 16 weeks 4 days with my first.. I think I've been feeling baby flutters for the past 2 weeks but this was nothing like that... Braxton hicks contraction? Or could the baby have stretched out or something? Is it too early for baby to make me feel such an intense feeling of pressure from the inside out? It only happened that once so I'm not worried... Just wondering what it could have been..