okay this might be confusing but i need help ...

I am on the bc pill taken perfectly. well during my second row of pills I was on antibiotics for two days. I have been using condoms since (today makes it 9 days since my last dose) when can I start having sex without a condom again? I start my placebos sunday and wanted to make sure it was okay to have sex without a condom on them or not considering this pack WAS taken perfectly but antibiotics interfered for two days so I’m just unsure when i’m back to being 99.7% covered again