Baby rogers, I took Vitex from May-August last year and it helped shorten my cycle and lengthen the luteal phase. I spoke to a naturopath in august and she said my dose is about 1/2 of what she recommended because it is one of the best supplements to help balance your hormones (primerose oil helps too). I doubled the dose on the bottle to what she said and had my first BFP in Sept. My O came 3 days earlier, instead of CD 18/19 came on the 15th.
Saying all of that, I m/c in Nov and now that the fc forced my cycle with progesterone I still can't seem to get my O at a decent time. I'm on CD 26 today with no O. Last month it came 2 days before AF. Really bummed that we can't even try! And I'm taking the chaste berry everyday too. I decided (as you can see below) to try to loose weight to help my cycles out. My bf is a nurse and told me your hormones are locked up in your fat and if you have IvF coming in May, excess fat hinders your ability to respond to hormone treatments. The last thing I want to do is hinder my chances of this working when we're paying $8000 out of pocket for the treatment. Being low ovarian reserve I very likely won't have extra eggies to freeze to try again either. So another IVF try would mean paying another $8000 rather than just an egg transfer. The stress of it all!