first thing put yer minds at rest my getting a pregnacy test ,, depending on that will guide you on different roads ,, one through pregnacy ,, which ye could get a dna in time to rest asured your mind ,, and if not through sexual education ,, which would not do any one any harm these days , either way hope you truly get the result yer hoping for
Hey there, actually sperm can live for between 3-5 days, but only inside a woman they don't live nearly as long outside that environment. I don't think you have to worry about pregnancy, even though your girlfriend had touched herself after you guys fooling around I think the chances of her having concieved are very very slim. If you are still unsure a pregnancy test would definitely show whether or not she was prengant from december. They can be bought cheap from various chemists and pound shops/dollar stores. Again, I don't think you have anything to worry about. You guys should maybe see about her fainting though, especially if the stress is to do with fearing pregnancy. Also the pains in her abdomen could just be hormones, it could be ovulation or it could be she could have an infection, especially if she has been fingered whilst wearing clothes I suggest she goes and gets that seen to. good luck and all the best. :)
Sperm can live up to 7 days inside the body, and if it's wet, warm and moist outside the body they can last quite some time as well. I've heard from 20 minutes up to a few hours myself.
Why is she worried she's pregnant? It's not even possible in this case. Just because she's gaining weight doesn't mean anything in regards to pregnancy. I strongly encourage you both to learn more about reproduction and what it takes. It could be that she's got an underlying problem that needs to be looked at. Weight gain can be from stress, eating too much/improper diet, lack of exercise, thyroid issues, etc. Fainting can be from low blood sugar, environment (if it's hot and crowded someone might pass out) illness, stress, etc.