feeling like the baby get stuck

This is going to be hard to explain haha but I hope someone can understand... I'm a second time mum and I've put it down to it being my second baby as this never happened with my daughter but if I'm laying on my side in bed and roll over to my other side or go to sit up too quickly I get this sharp shooting pain and bulge feeling in my uterus (almost like I've squished my bub). Is anyone else getting this?