The baby is breech. A week ago, I had an ultrasound and they said the …

The baby is breech. A week ago, I had an ultrasound and they said the baby was lying down in the feet position. But for two days now it seems like he's poking from the bottom and specifically in the groin area. It's even quite unpleasant, as if he's about to come out ??? Sharp movements. Has anyone experienced this? Could it be that the baby has flipped back up in the head-down position? He can't possibly hit his head like that...