I had sex with my boyfriend and we realized that the condom ripped right before he finished, I took Plan B just to be safe. Then a week later I got a UTI and had to go on other medication which the doctor confirmed wouldn't mess with the plan b. A little bit after I started taking the UTI pills I started to get a period like flow for about 2 days, it was slightly lighter than my usual, and ended 3 days earlier. Is it likely that I'm pregnant, I haven't felt any morning sickness or any other symptoms and it's been about 3 weeks now