Acutane

Can anyone tell me about acutane and their experiences with it? I have extremely bad, painful and itchy cystic acne and have had it for a few years now. The dermatologist won't do much for me because I am trying to conceive but we have been trying for so long and been unsuccessful so I am trying to decide whether we should putting trying to conceive on hold for as long as it takes to get rid of my cystic acne. Have tried everything over the counter and not a thing works.