I'm not been in this situation, but helplines are there to help...I also gave you some other forum links - forums that deal specifically with this - that I thought might be of use.
I know it must be maddening not to know - I thought talking about it with professionals might help you reach some closure, if not conclusions.
Ultimately tho of course, you're an adult, scared, and it's up to you what you do.
sorry I can't be of more help
D