Hello. I am 18 and as of yesterday I lost my virginity! We used a condom and it barely lasted too long at all. It lacked some lubrication, but hymen had already broke prior to this night another time. My main concern right now is that my period started 8 days early. It is a bit brown on my pad, but red bloody on a tissue. I am weirded out by this, is it normal? I am also considering getting tested for an STI. My throat sorta feels weird and my head has been on and off hurting and a little hot but not a fever today. We did use a condom, but I did not when it was penis to mouth. He has had sex with one other girl four times, one including without a condom his first time. She got tested at one point because of another guy she was having sex with was iffy and she was clean. Should I get tested just Incase? I could be freaking myself out (I tend to be a bit hypochondriac). Sorry for all the questions, but please help me out.