Still not ovulating

Bianca • Married to my best friend for 4 years. Head over heels for our little one! TTC #2 for 19 months
I received results from the progesterone testing and my levels still haven't changed...no ovulation again this month. This was my 2nd Clomid cycle and was 100 mg on CD 3-7. Next cycle will be increased to 150 mg. Has anyone gone through this and their progesterone levels not change at all? I have had the exact same levels for 5 months now and I am feeling very discouraged.