ANTIBIOTICS & THE PILL

So I am suppose to go on antibiotics for 5 days starting today because I’m sick. I’ve been on the pill for a little over a year now but i’ve never taken antibiotics while on it before. I know it makes the pill less effective. I was just wondering, am I suppose to continue taking the pills while on the antibiotics? Also when i’m off the antibiotics when am i protected by the pill again? Thank you in advance!