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 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.