My last menstrual cycle was on 17th november 2015. On 21st november had unprotected sex. Though he did not come inside me. But he rubbed his penis on my butt region outside and there was ejaculation on my butt. As soon we realized it. I soon got it washed with warm water and, later on with soap. Then within 18 hrs consumed I pill for the very first tym. As a precaution. Then after 6 days. I. E on 27 & 28th november. Had bleeding for 2 days with slight abdomen pain. And Dizziness. Then on the 34th day on 20th december 2015 I got my normal period of 4 days. In the meanwhile took 6 home pregnancy test with the prega news kit. Specifically on the 23, 27, 30, 33, 44 & 56 days after the incident. All came negative. Also after 42 day from the incident took a blood beta hcg test which showed result of less than 1 miu/ml. My cycle has always been regular from past 1 year of usually 27-33 days. But now as I m due for my next menstrual cycle. Today is the 29th day. I m having right side lower abdomen pain. And there is back pain more on right side. So just wanted to know. Are there any chance of pregnancy. Or pregnancy is ruled out completely. As I do not want to get pregnant now. Also whether is there any possibility of ectopic pregnancy? please help me soon. Advise needed in urgent. As this worry is constant killing me day by day. please help as soon As possible.