Pregnancy symptoms, but not in my head?

I had ovulation pain, implantation bleeding at 8dpo, bbt is up .5° and then some, cm very heavy and consistently creamy/stretchy.

My nipples are also very tender.

Other than the sore boobs, all of the other signs are beyond my control.

But today at 10dpo.....a bfn.

Does my body know something I don't?!?