Is this SAFE during fertility treatments??

(Letrozole Patient) QUESTION:

Is Myo Inositol or D Chiro Inositol safe to take during fertility treatments? Could this adversly bring on a period when we are actually hoping for successful implantation??

I wrote an email to my Dr but they will probably not get back with me until Monday or Tuesday. I've been on it since my previous RE recommended it, but that was before medicated cycles.