Period or spotting help or wtf is going on help ?

Okay so I had unprotected sex on  February 28 but the next day I took the emergency contraceptive then on March 6 I had unprotected sex but my boyfriend pulled out I know not the most effective method and I didn't buy the emergency contraceptive so on Wednesday I got some brown red discharge I thought it was my period but it lasted 2 1/2 days I got little blood clots that I usually get on my period but then it went away I know the pill affects your menstural cycle and well today Saturday I went to the bathroom and see this so what does this mean anyone ? My period was suppose to come Friday should I worry or wait ?? Help