I am a 18 year old female and while I was getting intimate with my boyfriend, his penis just went a little inside for a moment in my vagina. Though there was no semen and very little amount of fluid, we suspected an unwanted pregnancy. After 3 days I took 1 tablet of aspirin 75 mg for an abortion and an hour or two later I had burning sensation while urinating and also have blood and mucus while urination. I also have to go very frequently to urinate. I have a normal menstrual cycle of 5 weeks and I am expecting my periods soon. Is this a sign of pregnancy? What should be my next step?