what could it be?

Shay
So I have been having a dull pain on my right side by my ovary, it's been a cramping feeling in and off since yesterday. I ovulated last week also. What could this be? I've already had my period this month. I'm not on birth control either. I've gotten off of the shot in June after 2 years because i just don't want to be on birth control anymore. I've never had all of this happen before so that is why I'm worried. If anyone has any further questions ask away.
Thank you. 😊