What can I do/take to make sure I ovulate this month?

Kristin
Hi, I was wondering if anyone knows what you can do to make sure you are ovulating. I haven't had periods because I was on birth control. I took provera and 15 days after the last pill, my period came. I'm wondering if anyone knows what I can take, besides birth control, to make sure I'm ovulating this month. Any tips are appreciated!