I don't understand, if she really wants a baby on her own they why does she not use donor sperm instead of tricking and robbing a stranger of their child, what an incredibly selfish thing to do to the child and the father, I have no sympathy what so ever. Men shouldn't be having unprotected sex with strangers, and in my view shouldn't be sleeping with strangers at all. She might tell them all sorts to convince them - I'm on the pill, I'll take the morning after and its very likely she's taking advantage of drunk men etc etc
either way, seems odd that she wants to trick strangers, isn't she worried she'll be recognised now and her plan will no longer work?