Ttc for 2 years

I'm 25 and my husband (33) and I have been ttc for 2 years. I'm regular. We both work out. I mentioned it to my doctor last year and she said maybe just trying on the wrong days. I did ovulation test and got the positive around the time we bd every day or every other day. 2 years seems pretty long for a seemingly heathly couple right? Not sure if we should set up a doctor's appointment or wait out longer and hope something happens.