Danielle, you'll find that in the case of a known problem, they are much happier to offer assistance earlier.

However, there's not a whole lot a GP can actually do. I'd suggest getting a referal to a gynecologist at least, however with PCOS a reproductive endocrinologist is better (but tends to be a bit threatening and overwhelming as they are often attached to IVF clinics, even though there's more stuff they do than just IVF). Ask around to find out if there's a good one in your area.

For us - we'd only been TTC for three months before my PCOS was discovered. By 5 months I was on metformin and a couple of months after that we tried clomid for the first time and discovered that we'd need IVF when DH's sperm was finally checked... It took us a bit longer before we were actually ready to go down the IVF path, though.

Good luck!

BW