Hello. I'm A 21 Yo Female. I Had Unprotected Sex

Hello. I'm a 21 yo female. I had unprotected sex with my boyfriend on the noon 9th of Jan. I took ipill on 10th Jan, around 1pm. Been experiencing pain in the abdomen and maybe uterus, I am not sure. I have been having this urge to pee all the time and when I head to the washroom, it's nothing more than a few drops of pee and an excruciating pain and some kind of pull that I feel down there. It scares me. Also, today morning I noticed that when I went to the washroom to pee, a few drops of blood also came out with the pain that follows. But it's nothing like menstrual flow. It's only when I go to pee. Also, my motion system has also been disturbed and I don't understand what this all means. I had my last periods on 4th Jan. Please help me to understand what this all means because this was the first time I have had sex and consumed an emergency contraceptive pill. I have no one to talk to this about and it's bothering me alot. Please help. :)