Has anyone been trying for multiple years?

My husband and I have been trying to conceive for five years. He's 26 and I am 25 years old. I have had test after test, ultrasounds, bloodwork and my doctor says everything is perfect there is no medical reason why I haven't conceived. My periods are regular, literally down to the exact day every time. My doctor started me on clomid in April and still haven't had any luck.

Has anyone else been trying to conceive for this long? Anyone have any suggestions or advice?