Sex 5 - 6 days before ovulation. Got pregnant anyone?

I have 30-32 day cycle, on the irregular side.

This month(Sep) cycle is fully messed up. I got +ve opk on 9/3. We BD on 2, 3 & 5. Unusually, I got strong +ve opk on 9/9 & 9/10, but we couldn’t BD since he was away that week.

All HPTs are BFNs so far (last tested on 9/17).

My expected period start date was 9/17. Its been 4 days. No sign on AF yet.

What is happening? Any chance of still being pregnant?

Thanks in advance.