hi everybody I'm 16 and I am 2 weeks late today for my period. I am never irregular and I'm always on a 28 day cycle. my and my boyfriend have had protected sex but now I am two weeks late and I have high temperatures..(around 99.5 - 99.9) and I have cramps kinda like before my period. my back hurts. I'm nauseous. no vomiting though. I've been so tired lately and I eat non stop I feel like I'm always hungry. also my belly is kind of hard. i took two pregnancy tests from the dlooar store and the both cane back negative? is there Any way I'm pregnant even though we used a condom? why haven't I had my period? please help and reply! thank you!