TTC with unpredictable periods..

It's so aggravating TTC when my periods are not normal. I got off birth control in June. Including the after the pill period, I have had 3 periods since June. The last one was because my dr put me on medicine to have one. Going without a period for 3 months is not normal to me. Has anyone been through this? Please tell me there is a light at the end of the tunnel. TTC #1