Hopeful! What do you think?

I have Pcos...on Metformin for the past 3+ months... On my 3rd consecutive cycle since starting metformin... Got blood work and ultrasound to check everything and as per my GYN, FSH & LH levels are evened out and i have functional follicles. Ive been doing  OPKs since the 29th of Nov. but they are just getting darker as the days pass but not fully positive, also took my bbt daily except fot two days ... What do you ladies think?