Most GPs/GYNs don't like to give clomid for treating low progesterone if you're already ovulating. In fact, most GP/GYNs really don't know what to do about low progesterone. Mine admitted that if I had low progesterone, he wouldnt' know what to do and would refer me onwards.. but when mine came back low several times, he was quite sure that it wasn't what was keeping me from getting pregnant
I had to go off and find an FS on my own. He came to the same conclusion I did and immediately upped my clomid dose.
What were your progesterone results and what cycle day/dpo day were they taken?
Do you get your period regularly?
You could have PCOS, but clomid is also a treatment for PCOS (well, a treatment when you're trying to get pregnant anyway, lol). Metformin usually only helps if you have insulin resistance associated with PCOS.
There are many ways to diagnose it.. by ultrasound, by hormone levels/ratio at the beginning of a cycle etc. There are things that give you indications of PCOS like long & irregular cycles, heavy & painful periods... but those are not a diagnosis.
Low progesterone isn't exactly associated with PCOS though.
The spotting that is usually indicative of low progesterone is usually for a few days before your period is due. Other spotting throughout your cycle is usually not a progesterone issue.
Happy to answer any questions! I'm not a doctor by an means! This is all just stuff I've learned or understood due to my own issues and my own desperate searches for answers when I was ttc.