Hi, I’m Currently On Cerazette And Am Around Halfway Through

Hi, I’m currently on Cerazette and am around halfway through my first pack. Recently I completely forgot to take my pill and ended up missing the 12 hour window by an hour, and took it 13 hours late. I had some bleeding the following day. 5 days later I had unprotected sex with my boyfriend, completely forgetting the week’s previous incidents. Is there a chance I can get pregnant? Is it likely? Or am I worrying too much?