@babyphat83,
You should ovulate every month with the exception of during pregnancy. I'm a little mystified how you are sure that you are ovulating unless you are trying to concieve again and have one of those self insert monitors.
I would definately go and see your doctor. I'm sorry about your miscarriage, but it is important to still see him or her to make sure that your miscarriage was complete and that your uterus is clear to make way for a healthy pregnancy in the future.