Birth control pills for PCOS? Yikes! They did that to me when I was 18 because of irregular periods without doing any testing to find out WHY I was having irregular periods (PCOS) and it was the worst thing they could have done. Sure...I had regular periods, but those BCP's shut down my ovaries permanently (according to a fertility specialist 10 years later). Glad you researched it and are taking her to an endocrinologist. BTW...low carbing is very good for PCOS because there's a lot more to it than just irregular periods (like insulin resistance and eventually diabetes). That's why they call it a syndrome, because it involves multiple body systems.