Everyone says a human cant get pregnant by sex with animals or opposite then why do you explain why I am pregnant after my dog had sex with me?

Dog sperm can live in the uterus for up to 9 days. In this time the dog sperm will try to break the eggs cell wall none stop, 24 hours a day. The Human egg has antibodies on the cell wall that kills the dog sperm. But over time the antibodies are slowly reduced as they kill the dog's sperm. Most of the time the dog sperm out number the antibodies about 50:1, when the antibodies are depleted the dog sperm can then penetrate the egg's cell wall. when this happens the egg dies fairly quickly because the chromosomes do not match. so Nothing happens. But if you want to get technical when the dog sperm breaks though the human egg cells wall, you are fertilized and pregnant from the dog sperm for a micro second then the egg dies. So all science says a human can't be fertilized by dog sperm. But for that tiny micro second you are.