Creighton Model Ovulation Tracking

My husband and I have recently been trying to conceive maybe about 4 months now. I had a routine GYN. appointment and was told that I have insulin resistance which in turn means I may not be ovulating every month. I was told to start taking Chromium Picolinate and Myo-Inositol and to start using the Creighton method for ovulation tracking. Anyone else going through something similar or have suggestions, advice, tips?