Unfortunately, many doctors don't know how to investigate reproductive disorders like that. If your cycles are irregular and you haven't been able to conceive in 5 years, then obviously things are not normal. My guess is that your doctor stopped investigating too soon.
Have you considered working with an NFP doctor, who will take the time to really investigate why your cycles are irregular and why pregnancy hasn't happened yet? These ones are really excellent:
- Welcome to FertilityCare