My Lmp Was Nov 14 And We Did Our Deed

My lmp was nov 14 and we did our deed last nov 18 and we had two rounds of unprotected sex and all was witndrawal. I took Trust Pill as ecp after 3 hrs of the deed I took 4 pills and another 4 pills after 12 hrs but I vomited the second doze within 1 hr so we waited for 5 hourse to retake all the steps of ecp. Am I gonna get pregnant? I am very regular 28d cycle. So all in all I took 12 Pills in 30hours.