Hi there,
boy she has got you reeled in, you need to be completely cold about this. As suggested insist that she sees a doctor of your choice with no affiliations, if she does turn out to be pregnant insist on paternity tests, have nothing to do with supporting her through the pregnancy, read the Dave Scott posting here, hell the brother/lover whatever could be her husband!!! so check that out as well. IF after birth she can PROVE the child is yours then you can THINK about your responsibilities and ONLY then decide to see her and the baby and DECIDE if you want to support your child. I would advise strongly NOT to go and see her as she you know she will wrap you round her little finger and you will believe anything she says as you probably want to hear that anyway. PLEASE have a serious think about what you intend to do.