So today my boyfriend decided to not tell me that he was going to ejaculate in me (I was on top) and I'm so worried that I could get pregnant I KNOW we should be using protection so please do NOT comment anything about that. I am NOT on my fertile window and my chances said 3% today. Directly after we had sex I went to the bathroom and peed. Cum was coming out when I wiped. Please help me to understand this 'fertile window' thing better. I'm so concerned.