Pcos TTC

I have been TTC for 5 years now with my husband i have pcos and take metformen 500mg X2 a day. I am starting to feel like there's no hope I think it's time to go see a fertility dr. But I am afraid of what they might tell me I just turned 28 what do you all suggestions is there anything else I should try I eat right and I have lost 50 lbs but still nothing I am afraid my younger sister just got pregnant agin and she doesn't even want kids I am just going insane thinking about how to get pregnant every min of the day I need advice please.