J.J.
I have much the same problem as you. You can try charting your temps. This will give you an idea of when you actually ovulated in each cycle so you would have a better idea of when to try a pregnancy test, and when your period shoudl be coming. Look at a site such as www.fertilityfriend.com You can also discuss your irregular periods with your OBGYN. I have heard that Clomid can help to regulate you. I am actually going to discuss that again with my doc at my appointment in a couple of weeks. Good luck.