TTC after NuvaRing

I recently got off NuvaRing (5/7). I’ve been on some form of birth control for almost three years now. So I always figured that it would take my body a while to ovulate again. I’m new to ovulation testing so any advice would be appreciated. Do these mean that my system is bouncing back faster than I thought? They seem to be getting lighter, does that mean I already ovulated??