Me and my girl had sex after a whole month of not doing anything at all. We had protected sex for about 15 or 10 minutes then the rest was all ha****b. But we cleaned up after washed our hands and she changed close clean close. She has boob pain lower back pain and cramps it's been two days she missed should I be worried. She barely got cramps today on her lower stomach and said that she could feel her period coming but then it went away. I'm freaking out don't know what's going on