I don't know what's going on with my body right now.. My boyfriend is in the military and he came up in the middle of June for 2 weeks on leave and we had sex every single day he was here unprotected and I haven't had my period yet this month. I keep getting strange symptoms - my boobs are really sore and tender on the sides and my nipples are beginning to feel tender to the touch but my boobs haven't gotten any bigger, I'm constantly eating everything in sight and I use to not eat so much, I get these slight cramps like AF is on her way but nothing happens, my lower back aches a lot, and I have really bad irritability. Also a little bit ago I was laying in my bed relaxed and I turned over and it felt like my lower abdomen muscle was being pulled. I have taken so many prenancy tests but yet they all are BFNs. Can someone please help me out?