I took the morning after pill - levonelle-1 two days after having unprotected sex. It was my first time and my boyfriend did pull out but I was still worried I was pregnant. Anyway it has been two days since I ve taken the pill and today I woke up and went to the bathroom and found blood in my urine. Not only this but it sort of stings after I finish urinating and there s light amount of blood when I wipe. Is this a side effect of the pill? Or do I have an STD ? Please help !