Vitex. And probably losing 12pounds. Has helped so much all my life my period has been so irregular. Well last month October 1st I started my period til Oct 3rd. Then I started vitex Oct 4th. Took 2 a day 1000mg. Last week I stoped taking it for a week. Then today I woke up going to take a pregnancy test.. But instead I started Aunt flow. Exactly ONE month after my last period! 🙌🙋 Thank you God