Will my implanon NXT still work if I'm taking roaccutane 20mg twice a day?

I've had my implanon for over a year now, it lasts 3 years and I've recently started taking roaccutane 3 weeks ago. The doctor told me to take 2 pills of roaccutane a day. I'm on the 20mg. Recently I've read that roaccutane doesn't work on progestoren only contraceptives and now I've just found out that implanon NXT is a progestoren only subdermal contraceptive. Can someone please tell me if it still works?

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