Pain in lower abdomen/cramps from sex?

I had sex with my partner for the first time in 4 months 2 days ago. We had sex again yesterday. I’m currently on Depo and the pill (just to balance stuff out and relieve the never ending period I was having for 3 months). Today I started experiencing cramps, and normally my cramps are very distinguishable because it’s like I can tell exactly where my ovaries are. But this is pain that covers my entire lower abdomen. I thought I would ask if anyone else has experienced this to see if it might be related to the sex or birth control. There’s absolutely no normalcy to my cycle so I have no idea if I’m having Normal menstrual cramps. Help