I had sex last week and I haven't started my period and I'm worrying because I don't want to be pregnant and I can feel my cramps and feel like ima bout to start my period but nothing's coming out like that white stuff before you start your period and me and my partner did it with out a condom at first and then the 2nd round he put a condom on and after a little bit he took the condom off, is it normal that there's nothing coming out and have cramps and feels like I might start my period? My breasts are like tender or sore and they feel like that when I'm about to start my period I'm not sure what's going on