I am going to get an ultrasound on Monday to find out if I have PCOS. Even if I don't, I will have to start a regimen of B/C manage my hormones, which means I MUST quit smoking. Things are just getting so difficult and scary. I am worried that I'll not be able to have children...I'm only 18 (19 in a little over a month), but I got my first cycle at only 9 years old. What is the likely-hood that I'll be infertile?