Hi everyone! I have three kids already and I'm afraid in pregnant again. Me and my husband had unprotected sex 12 days before my period was due. I'm supposed to be on periods by the 15th of October but I'm feeling very uneasy in my lower abdomen.. Have period cramps even though they are not expected this early ..My lower back hurts too.. Also I'm so bloated that I look like I'm 4 months pregnant. I don't know what going on. Help!!