Push your knees out in the bottom of your squat! If you're in the bottom of a squat and you have no other place to go, the reason why is because your body is in the way... That's why you don't see a pregnant lady just flop on a couch; she starts pushing her knees out to allow room for her belly... You need to push your knees out to create a little bit more space and still be able to maintain position then come out of the hole.