Trying to understand, help

Kristen • PREGNANT 🌈 due 1.29.21 👼🏻1.29.20👦🏼1.2.12 👧🏻🌈1.19.11👼🏻11.22.09

So i had a peak on CD15 i know that much. And then CD16 it was already back to a faint line. Now on CD18 and i went to pick up some things at dollar tree and picked up some ovulation tests and it's back to being darker again. Does that mean im ovulating again?? I was having cramping so out of curiosity i took a test. Im suppose to be 2dpo today according to premom app.