Hello, i had unprotected sex on 6.11 and apparently my ovalution was on 5.11.from that time I had tummy pain which was unusual. I took Ellaone after 3 days and all of the tummy pain went away. Now I'm 5 days before my period and I feel belly cramps,pain in lower back,pain in breasts and I have headaches. I also feel always hungry but this is normal thing for me. Does it mean I'm pregnant?