6th cycle of clomid

Jord
Hey y'all. My husband and I have been trying to conceive for almost 2 years with no luck. I am on my 6th cycle of clomid 100mg (first 3 cycles were 50mg) I am taking the clear blue ovulation tests, but again no luck. Starting to get discouraged. My cycles are all over the place. (Usually 35-45) any advice? 
Thanks 😊