Hi, I need help. Im 15 years old, I had unprotected sex with my boyfriend, I haven't got my period. I took 3 tests, the first two I took 4 days after my missed period, the last test I took nine days after my missed period, and they all came out negative. I've been feeling pain in my breasts, and I've been feeling tired lately. I also have been craving a lot of things, and some foods that i used to like, i don't anymore. I'm eating a lot more lately too. I don't know what to do, I'm never late for my period. Can a home pregnancy test be wrong? Or did I take it too early? If anyone can help me or tell me anything please do I've been really stressing on it. :-(

Thanks