Crazy family members.

Okay so my s.o.'s older sister and husband and really pushing me over the edge. They're trying to convince him that the child isn't his and that I need to take a paternity test. Which to that I said okay I have no problem with it because I've never been with anyone else. That's not it though they're trying to convince me to give them the baby because they want another! Like hold up at first your saying it might be someone else's and now you wanna take it. Hahahahahahah no way. Trying to stay calm but it is getting out of hand.