Vitex Help

Hello ladies! Has anyone had any success using Vitex? I've been taking it religiously since August and my period is still not regular. After stopping birth control pills in April I had a regualar period in May,  and then my menstral cycle has been anywhere from 50 days long to currently 67 days long. My last regular period was mid September. October 30th I had a period that lasted 2 days. Nothing since then. Not sure if I should try something else? What's worked for you ladies? (I made an appointment to see my OBGYN today but can't get in till the end of this month)