I had unprotected sex on november 21st 2015. Which was the 5th day of my period. I had taken I pill on 22nd november within 18 hrs after the incident. There was no direct ejaculation inside my vagina. But he had rubbed his penis on my back butt region. And I had not totally taken out my jeans. It was there. But the ejaculation was there outside the butt region. Touching my skin. And he had pulled my jeans a little down from back. As a result there was ejaculation there. Soon I got it washed with warm water instead of wiping it out with a cloth. My previous periods before november 17th 2015. Were in october 19th 2015. In september 23rd 2015. And in august 28th 2015. The november 21st episode was the first and last incident of any sexual act. After taking the I pill. On 22nd november. I had no symptoms of side effects initially but later after 6 days i. E on november 27 th & 28th november I had bleeding for 2 days. Slightly low than my regular periods. And slight abdomen pain. N. Dizziness. Was there. On december 20th 2015. I got my normal period for 4 days. And again on january 19th 2016. I got my periods for 4 days. But in these both periods there were slight brownish blood in the beginning. And then the normal flow was there. In the meanwhile I had taken 8 hpt test using preganews kit. All with morning samples. And all came negative. The test were taken on 21.27. 30.33. 42.63. 91 days from the unprotected incident. And I had also taken 2 beta hcg blood test. The first one was taken 42 days from the unprotected sex incident and the second one was taken 63 days from the incident. Both of which had result < 1 mIU /ml. I had also taken a pelvic sonography on 73 days from the unprotected incident. And it came as uterus is anteverted. Empty. Measures 8.9cm*4.7cm*3.7cm. I also did not have any pregnancy symptoms such as nausea. Vomiting. Etc. The problem is this month ie february 17th 2016 I got my period but only for 1 day. And then on 18th. Nothing. And on 19th. Two spots of blood. And I could feel the blood near the vagina but its not coming. Also I feel my stomach is slightly bigger. And also my breast colour has changed a little. It looks slightly darker in colour. please help me. Just tell me that am I pregnant or. Pregnancy is not there. And it is because of the I pill. please help me with your advise. As I need it badly. This worry is constantly killing me day by day. please help me. N also let me know what should I do now?