Does Accutane Cause Irregular Periods or Infertility?

I finished 6 months of Accutane 2 months ago. I stopped the pill 4 months ago, so my body had a chance to be rid of the pill before my husband and I began trying to conceive. It has now been 2 months off Accutane and we are trying to conceive but my cycles have been 45 days or longer! I have been on and off the pill before with no issues. We do have one 4 year old child together, got pregnant the first try with him. Why am I have trouble getting pregnant? Can accutane cause infertility?

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