Pregnant...right after AF?

I'm on cd8 today. Last cycle AF was two days late, I tested two bfns. The whole TWW was symptom free and I felt really happy and calm.  AF finally came, no cramps, no symptoms, temp dropped slightly but is still high 97s. AF was super short and my CM never dried up after, and cp never dropped. I've had watery CM ever since, and now my bra is too small and my nipples are very big and when you squeeze them...white/thin/milky discharge comes out?! Also my bloat never went down after AF, my appetite is off, I just don't feel how I usually do at this time on my cycle.

Is it possible to think implantation bleeding is AF? Is it possible to implant at 13-15dpo?

I'm so confused and have no tests at home, will buy one tomorrow.

Thoughts??