Period or Spotting?

Okay so I have been on the pop (progesterone only pill) since July now. I switched to a different pop in January but I’m pretty sure that pill has very similar ingredients to the one I was on before. My periods have been long and heavy but predictable for the most part. In late February I thought I was on my period. I was bleeding and had some cramps during the first day. The second day, my cramps were gone but I was still bleeding enough to wear a tampon/pad (but this was lighter than normal). since I started this “period” I have been bleeding ever since (two of those days I did not bleed at all). I am having no cramps, just bleeding to the point where I have to wear a tampon. Is this spotting or my period still? I also just started CrossFit so maybe this bleeding is due to me working out consistently? Or maybe it’s because of my pill? I had this problem once before and went to the Gyno because of it. They did some tests and nothing was wrong. I am just hoping nothing is wrong with me. Help!