8 days late. BFN

I am now 8 days late and have been getting BFNs.

I tracked my ovulation using clear blue ovulation test and once I get the solid smiley face, we bd the same night and the following day.

On 6 - 10 DPO, I started experiencing cramps and pelvic pain in the right side and have been feeling very tired, which is not normal for me.

Anyone experience this and ended up with BFP?