So the first date of my last period was 25/feb/2017 so I'm most likely to ovulate next week around 11/march. The thing is I had sex with my bf just now with a condom and he didn't cum at all. However after sex I realised there was a small hole In the condom and now I'm worried if I can get pregnant from his precum that could've leaked from the hole.. I'm thinking that there isn't any sperm in his precum because as people said sperms in precum is caused by what is left over in uretha from the last ejaculation. However my bf ejaculated only yesterday and he urinated many times before we had sex today. But STILL  there's maybe 0.1% chance there was a sperm and it can also last inside a female body for a week just in time for me to ovulate. Do you think I should take a plan b?? I'm hesitating because last time I took it it just messed up my cycle like hell and took me to a rollercoaster moods.