Will being on the bcp (Diane 35) affect my outcome on accutane?

I have been on accutane for one month, alternating doses of 40mg and 80mg every other day. I also started back on Diane 35 when I started this course of treatment. I had been off the pill for a year and a half. I'm concerned that when I finish my accutane course & if I decide to stop the pill after that my acne will return. I understand that accutane works in a different manner but is it possible that the bcp helps mask acne?