How were you diagnosed?

Sh

After 6 months of TTC, I went to my doctor who is a gynecologist but doesn't do labor & delivery or fertility. She told me to start OPKing and mentioned I may have PCOS due to long/irregular cycles, acne, and cramping randomly throughout my cycles.

She wants me to go to a fertility clinic for a diagnosis but I fear they'll just push for in vitro or be too expensive.

How were you diagnosed? Should I find a new OBGYN?