11months pp and maybe pregnant?

Jackie • Baby boy born 10/17/16 Baby girl 09/14/18 🤰 with #3

Had sex July 30th test a few weeks later had what I thought was a couple faint positive but never got darker so assumed I wasn't pregnant. We also had sex last weekend but I started my first postpartum period yesterday.

But I took this today and now I'm just confused?