Implantation Bleeding

Cece

So 3 days ago what could possibly have been in my implantation window I had a light pink smear in my panties (in all honesty I’m 14 weeks post partum so periods haven’t regulated yet but based off cervical mucus…) then yesterday I had one darker brown smear in my panties… but absolutely nothing other then those 2 incidences. With my previous pregnancies, I regained a somewhat normal cycle right away, and we did have some poor choices recently? Did anyone have similar implantation bleeding? In all my 4 pregnancies, I’ve never had implantation bleeding…