Ok so I'm 18 and I lost my virginity to my boyfriend last month around the 10th. We were careful and used a condom and he pulled out before he came (with the condom on) every time wich was maybe only 10 times. My period was nine days late and when I got it it was light and off and on for about a week. I haven't had sex since then and my period is now 5 days late and my breasts are sore along with cramps and random nausea spells. I took 2 pregnancy tests since I would be a month along at this point and they are both negative so I don't know what to think. Any help would be amazing :/