ok so I missed a day of my BCP a week or so ago so the next day me and my boyfriend were messing around and he didn't cum in me but around it I continued the BCP well Saturday I was out driving with my mom and I got some cramps we stopped at a truck stop to meet up with my boyfriend before he got there I went to the bathroom and it looked like I started my period well I got some tampons well later that night I looked and there wasn't much blood so the next day same thing not much blood so now it's Monday and no bleeding what could this mean any advice (we didn't get any cum in me just want to point that out) my periods are kinda regular I never remember when I'm gonna start but I'm not late I don't think