Antibiotics and the pill

I know antibiotics fuck with the pill but I had a question. I’m getting my wisdom teeth removed in 4 days, and I’m supposed to take antibiotics the day before surgery. I’m going to see my partner tomorrow and he usually just pulls out. But if I start taking my antibiotics 3 days from now and have unprotected sex in 1 day, is there a higher risk of getting pregnant? Should I use a condom just to be safe?