What could cause bleeding after taking an I-pill?

Hello doctor,

I had intercourse after 15 days of my period, and the condom tore, and he finished inside me. I took an I-pill (plan B) after an hour. A few hours later, I started bleeding with a white discharge, and it was hurting a lot (probably because it was my first time). I panicked, and the next day, I took an unwanted 72; again, I started bleeding on that day, too. After five days, I noticed a weird kind of discharge (unusual); it was transparent and thick, and it persisted for a few days. After a few days, one night, it was cramping badly. I thought it was my period as it seemed like I was bleeding, but as it began, I started to notice it was thin and brown. As time passed, the cramps became much less, the flow decreased a lot, and two days later, it stopped. As far as I observed I think it was implantation bleeding. From the next day, there was very little bleeding like a few drops per day. Now, I feel like vomiting and frustrated or agitated. I am panicking thinking I might be pregnant. I am only 20 and my parents are strict. I do not know what to do. Right now I am thinking about abortion pills as it is not too late. Kindly suggest.