Irregular cycle = infertility?

Cake • It's called the American dream because you have to be asleep to believe it.
-- I never paid attention to my cycle - I knew it was irregular when I was a teen, but that it's become more regular while in my 20's. However, I think I'm still considered irregular. My cycles start between 26-35 days. 
-- I'll go see my doctor to make sure (but it may be a month or two from now), but google says that irregular cycles account for 30% of infertility in women. Could it be that my body is actually doing what I want it to??? I can't even express how thrilled I'd be if I were actually infertile! Has anyone had this, or does anyone know more about it??