Help! Lying about pregnancy?

I am in a somewhat sticky situation. I was dating this guy back in last year for a few months. We weren't very serious. He ended up sleeping with an ex one very drunken night. This all happened 3 days after the girl found out he had been seeing me. well, I probably should have dumped him, but I really wanted to be with him and he's really not the cheating type. So, after he came clean I told him we're either exclusive or I'm out. He said he wanted to be with me and everything was fine. Six days after they had sex, she calls, and says that she is pregnant. A doctor's appointment was set up in January to get a pregnancy test done. She called on the Friday before and said that she forgot that she had an annual on the Friday, and so she already knew she was definitely pregnant. So, he did not get to go with her to a doctor. She called randomly the first month, then he was unable to get in touch with her for a couple of weeks. She comes to him at 5 weeks and shows him a sonogram that she got, while he wasn't at the doctor. Supposedly she texted him and he said he'd go to the doctor, but he never received a text. She disappeared for a couple of months at that point, then called one day and said she had another sonogram. She showed up, yelled at him for not being involved, and left. She never gave him a sonogram. Then, at about 5 months she texted him a picture of a stomach, which looked more like a pillow. He didn't answer because by then things were just way too fishy. A week later he gets the text again. So, he said, wow you're stomachs big, when are you due? She couldn't say. She said they keep pushing up her due date. then, last night, she texted him saying she was having contractions and on the way to the hospital from another state! She told him to meet her there, oh and by the way, now it's twins! He told her to call when she got into town or if her contractions got closer. He has yet to hear from her. He called today and got no answer.


This whole situation has been crazy. I can't decide if she's lying or not. I know I'm somehwat dumb for staying with him, but he's been really great. He made a mistake and if she's pregnant he'd take care of the child. But we can't get a for sure answer. I don't think I can make it the whole nine months without having some idea if she's even really pregnant. Someone give me some input, please!