I had sex w/ my ex-girlfriend wensday night mulitple times of last week, (11/30), I did not ejactulate insde her any of the times(Despite the rumor of possible semen in precum I still feel safer not ejactulating inside her). Her last pill of her 28 pill pack (21 active, 7 non) is on saturday the (12/3), well thursday she took went home until (12/3) and she forgot her pills. Since she forgot her pills we used protection after that.

What are the chances of possible fertilization because of the sex b4 the missed pills. The only documentation I can find states that if pills are missed just use protection from that point on? Nothing is mentioned about sex previous to the missed pills. I was wondering if any of you know. Thank you ahead of time for your replies.