I have been living my girlfriend now for over 8 months and having unprotected sex. She has been late on occassions but eventually gets her period. She started seeing me whilst with her boyfriend who is now ex and moved in with me 6 months after living next door to each other in an apartment. Anyway I have found out she is pregnant - 7 weeks. Now the twist is she does not know if I am the father or not. Gaaaa!!!!! We went through a rough couple of weeks which she said she turned to her ex for support. And guess what?? They had unprotected sex on 3 occassions. All this being after her last period and now she is pregnant. So we are both in a dilemna what to do. The ex says he is sure it is mine. Weak prick. Each month her periods are not a normal 28 day cycle so trying to work out what date she was most fertile is difficult. Her previous two periods were about a 6 weeks cycle. Her last period being on 19th Feb and now she is said to be 7 weeks pregnant. We have sex regularly and she says she had sex with her ex around 2nd 3rd of March. Then not again until the 15th. So if anyone can help give me some advise I would appreciate it as the only options open are either abortion which I do not want her to do or wait until the baby is born and then take blood tests or a dna test I guess. Any suggestions of what I should do????