Hi, I missed my period last month and am now 2 weeks late. I was sexually active about a month ago, so I took 2 pregnancy tests and got negative results. I have been experiencing symptoms of PMS such as bloating and cramps, but my period still hasn't come. I live in an apartment with 5 other girls, so I'm not sure if my body is trying to sync with their cycles. What should I do? Could I be pregnant?