Charun

Ok, so a friend of mine knocked up this chick and he's all worried about her because she says she's pregnant. It's been one week and she says she's experiencing morning sickness, nausia, back pains, blah blah. I know for a fact that she has been with other guys. The question for you scholars out there is... Is it too early to tell that it's my friend's or would it take longer than a week for her to experience signs of pregnancy? Thanks!