I feel ridiculous asking this, as I am a healthcare professional and too old for such foolishness.... BUT my boyfriend and I were fooling around and I was naked while he had on boxers. The tip of his clothed penis touched my vagina for less than 5 seconds. He definitely did not ejaculate, but likely had some pre-ejaculate, and there was no penetration; we quickly changed positions. I was on day 10 of a very regular 28 day cycle.
What are the chances I could have gotten pregnant? My period is due on Dec. 13.