I had casually been flirting with this 22 year old girl for about 7 months. (I am 24) She admitted to having a crush on me and it later escalated into more adult conversation. I told her many times it wouldn't be the best situation to be intimate together as it would destroy our friendship and complicate matter. I also told her I was not looking for a relationship and that perhaps she is a vulnerable woman. She admitted she understood, but kept pursuing me. I about ready to move away to graduate school agreed to be intimate. She met twice and never had penetrative sex. I never "spread my seed" during our encounters at all, other than perhaps "precum", which I cant tell. We usually had a barrier, such as underwear or clothes. My penis, didn't receive any attention from her, except maybe a few touches, through clothes and a few brief hand grasps. I myself didn't touch my unit either, so even a chance of "precum" having sperm in it that I transmitted to her vagina seemed unlikely, but it could happen. She is NOT on birth control, she was about two weeks between her period. She had her period about two weeks after we last met. I have moved and she has been aggravated that I haven't been paying much attention to her so she sent me a text message stating: "started taking prenatal multivitamins..." and I said to avoid leading into the statement: "Nice...go get that Folic Acid" she responded saying "Not for that reason" and I said "ah I see" and that was the end of the conversation. Could she be pregnant or is she just trying to manipulate me? She does have some mental health issues that are generally non threatening.