I finished Accutane course having 20mg twice a day for 6 weeks. Nd still getting the small breakouts. After one month of completion. Is this normal?

Accutane is longer. Taking Isotretinoin (accutane) for acne takes roughly 5-6 months to complete the treatment course. Taking is for just 6 weeks will not be long enough the experience the lasting benefits. I would get back in to see your doctor/dermatologist to continue treatment if that is what is needed.