When do you ovulate?

This is my first cycle on clomid. I took it cd3-7. I'm currently on cd 10. I started doing opks on cd7 and it seems like they're getting lighter not darker. I also haven't had any side effects from the clomid. I'm starting to worry that I'm not going to ovulate this cycle. When in your cycle have you ladies ovulated on clomid? I think I'm driving myself crazy with all this ttc stuff.