God her father is such a trash dumpster. YOU slept with a MAID, no matter what you said. YOU are in a position of power. The maid could not have refused you.
I also don't know how the fuck he's solely trying to pin the blame on the mother when he chose to stick his dick in her in the first place. If you didn't want to risk an unwanted child with a "lowly" maid then you shouldn't have fucked her.