Help?!? Irregular periods ?!? Idek

Taylor

So I got my nexplanon put in when I was 17 (2017) just recently got it out the 6th of July. I’ve had irregular periods the whole time last month I had three different periods. They said it was bc I was near the end of my nexplanon so I got it removed and didn’t get another one since I wanted to try and conceive so I had a regular period July 1st -July 7th. We have been sexually active every other day. Yesterday I had light spotting, it then went away that same day. We were intimate last night then today I had light spotting in the morning and now what feels like a normal period. Now I’m back to very light/medium spotting. I did take an ovulation test today and it was a faint like. Can anyone help explain somewhat this might be. I don’t think it’s implantation bleeding. I’ve been to the doctor and they said it was all bc of my nexplanon. And I’ve never really had regular periods. Please help. What is going on. My gyno isn’t listening. HELP!!!!