I'm 15 years old and I just recently had sex with my boyfriend of 3 years for the first time. He took my virginity. The first time we had sex, I was unaware of this at the time, but I was on my 2nd day of my ovulation cycle and we did not use a condom. But, because we didn't have one, he stopped before he could ejaculate. Although, I'm still very worried about the precum. He told me that he didn't even get to that point, but I still can't help the fact that I'm nervous about it. I'm a week late for my period. I read on a website that one side effect of early pregnancy is cramping, and I've been cramping a lot, I've also been really tired and moody. I'm really scared and I just need help. Any advice would be greatly appreciated. Thank you so much!