help. opinions please

Jordyn • Jordyn. 27. Pansexual. Fetlife. Poly. Single. Pregnant with #1
Okay, so I had my period two weeks ago. It was on and off. Really weird period. It would be on and off and then light and then heavy and then light. I just stopped taking my birth control due to I think it's causing some issues. Supposedly on my app today is the first day of ovulation. What could this be? The end of my really odd period?