It seems that baby likes to bury him/herself really low down in my uterus when s/he is going to…

It seems that baby likes to bury him/herself really low down in my uterus when s/he is going to sleep. It's really uncomfortable and I can see him bulging out of my tummy. I also need to go wee a million times when he's down there squashed against my bladder! Anyone else experiencing this?