Getting Pregnant With PCOS

Hi there, 

I'm trying to conceive and wondered if you guys had any advice / success stories. 

I was diagnosed when I was 18 after suffering with cramping for years. I was never given any medication as I'm not overweight ( I've actually been underweight most of my life, could this be affecting my chances?) And wasn't trying to conceive.

I am 28 now and have regular periods, I was recently hospitalised with a suspected burst cyst however was cleared and at ultrasound one of my ovaries were ovulating. 

im reluctant to start metformin, does anyone have a success story with this?

thanks for taking the time to read this. I look forward to your replies xx