Clomid ovulation.

Emilina • Lost? Follow me!
Sooooo I took my first round of Clomid 50mg on cycle days 3-7. I did opks until cycle day 16 and then went on vacation. I didn't get a positive while I was doing the opks. I then had cramping on my left side on cycle day 17. And on cycle day 18 cramping again. I'm on cycle day 19, do you think I ovulated?