Hello, My Wife Hasnt Had Her Period In 50 Days.

Hello, my wife hasnt had her period in 50 days. We went to a gyno and she checked for pregnancy but the results were negative so she prescribed deviry 10 mg. my wife took it for 2 days but stopped taking it as she felt it doesn't suit her ( she had pimples on the face). So please advise if she should continue to take deviry or not.