4th month Ttc

ju

Hello all. My Mirena birth control was removed in December. I had it for 2 years. I did not have a cycle on it. Since then my periods have been normal or a couple days off. According to the App I’m suppose to start tomorrow. Monday i started having some spotting and then it stopped. And then yesterday i spotted for a couple hours and stopped and then spotted again today. It’s light pink and something dark brown. What do you ladies think it is?