Confused. Will it work.

So last wed i started the pill. Took one on wed. One on thurs. One on friday. But then was up staying in my bfs on friday for the weekend. And didnt bring it with me. So went without it on saturday and sunday . Had 3 or 4 rounds of unprotected sex on sunday threw to monday. Then didnt take it yesterday either. So popped two into me today. And when i went to the loo there i have dark red/brown discharge. Am i deff not protected againat pregnancy now