Help! Progesterone a little low/hormonal imbalance??

I've read that if my luteal phase is 10 or less days that I could have low progesterone production/hormonal imbalance. I came off the pill last month and my luteal phase was 9 days before I got my period and I'm hoping it lasts a little longer this month. If it's short again do any of you have any suggestions that you've tried to rebalance your hormones and increase your progesterone that lengthened your luteal phase? Vitex pills or progesterone cream? Or maybe added something to your diet to help? Thanks ladies!!