I am 15 weeks and 2 days pregnant and I'm getting a good sized bump. Is it normal to start to feel your muscles stretching around this time? It's starting to get uncomfortable for me just bending down or having any type of pressure on my belly. I can also feel my back muscles starting to stretch as well. Is it normal or is that just me? I use to be very skinny before my pregnancy so this to me is just uncomfortable haha.