What can i do to help these unborn puppies ?

My bfs moms friend asked if we could keep his pit bull WHICH WAS IN HEAT and his dumb self is going to tie her to the tree where my bfs dog is which is (mixed)male. So a female to male over night that was his fault ! So he was like if any of them puppies are mixed then he's going to beat them with a hammer until they die and my bfs ma said that she would call the law. But what if he takes the pit (her name is storm) while the puppies are nursing ? Can he do that ? How can I stop him ? She is not my dog to take to the vet and get spayed or emergency spayed so don't suggest that. I need help fast ! She is like maybe 1 1/2 weeks pregnant she is such a good dog ! HELP! Thanks