I legit didn't even know bout this fertile window and I had sex I think second or third day on it and it said 10% and my boyfriend and I didn't use protection the time we did it but he pulled out that's for sure. Does anyone think I'm pregnant or am I just being paranoid like always. I said I'll go on birth control but now I think I should wait till I get my next period which is next week supposedly.. I'm scared af. I don't wanna go on birth control this week and think that I'm pregnant cause of the symptoms I'll be new to it I have no clue wth go do someone can you give me advice?