I'm not on birth control but I use protection. A few days after my last period I had sex without a condom.. but My boyfriend pulled out. now I am missing my period. Im 3 weeks late going on 4 now. I have a odor in my urine and thats it.. no signs of being preggy nor about to start my period... i took one test.. (saving the other one to see if i start next month..) It came out neg. but it was around noon and i forced myself to go to the bathroom by drinking alot of water. I've just started college and hope im not preggy. but im lost about why i missed my period and the test is neg.