Is There A Risk Of Pregnancy If We Have Unprotected Sex While My Wife Is Taking Medication For PCOD And Her Period Is 2 Days Late?

Hi doctor My wife having pcod problem from last 6month.and period are already late by 2 days. And as per prescription she is take cyclonorm p and e and pconorm from last 3 days. And she will take krimson from 4th days of her period. We didn t have sex from last 4 days. And I want have without condom. Please tell me is there any chance of pregnancy without condom