The pill – please tell me if i am definitely protected!

Patient: I am on the pill mircolite and am just finished my first pack of pills. i didnt take the pills on the first day of my period and i have never taken the pill before, this was my first month.. i am due to start the second pack on the 30th of december and i will be having sex then. i havent yet had sedx as i wanted to take the first month without having sex to ensure i was protected however i am uncertain if i am protected et. i want to be sure as i do not want to risk pregnancy. can you tell me if i will be protected once i begin my second pack?