iud and acne medication

Genevieve
Has anyone ever taken accutane the cystic acne medication while on the iud? I have the packet of information but thought some real like input would help too. 
Over the last year or two my acne is awful and my doctor recommended accutane (last resort kind of thing) but I'm so scared of always using two forms of bc and long term effects or if it interferes with my chances of becoming pregnant in the future. Thanks ladies!