[mochaccino]

Since you have thyroid issues it makes sense that you might have a progesterone deficiency, but you should get a saliva test done, unless you've already been tested. Unless you have a progesterone deficiency, using PC alone is definitely not going to work. Even some women with progesterone deficiency do not grow at all on PC alone. If you decide to use PC then you should probably only use it during luteal phase, and not necessarily every month, and you'll probably have to cycle it along with herbs or PM. It's very easy to OD on PC and it can take months for the excess progesterone to leave your system. If you do take too much it will stall growth, and might even cause shrinkage.