OPK help CD6!!

C • Mommy of 4 little girls & 2 🌈 babies -3.22.09💏- Instagram@ cee_stanley

I took this out of curiosity and it is almost positive. I'm only on cd6 AF ended on CD3. I usually have a 28 day cycle. This is super dark for CD6, compared to last months opk on cd6. Has anyone had this happen to them, what was the outcome? Should we BD anyway? I also started taking my bbt. Thanks for your help!!!