A blood test can determine if you have PCOS or not and there are usally symptoms associated as well but these are many and you might have some, all or none. Excess weight, a lack of or irregular periods, excess hair growth and insulin resistance are just a few. Check with Doc if your not sure he or she can order a blood test you don't need to see a specialist for that. A scan is a sure way of telling if you have PCOS or not but can be a bit more costly.

I have PCOS and was diagnosed 10 years ago via blood test and scan. DH and i spent 4 years ttc before going onto Clomid to conceive. We landed bub after our 3rd and final cycle before IVF so we are very blessed we did not have to go that far for our miracle.

Note though that stress can play a big part in preventing pregnancy. The more you want it the harder it can be so be sure to practice relaxation techniques and nurture your relationship with your partner.