don't be afraid of estrogen as long as no problems are happening. new thinking in the field (from the docs doing this day in/out, not mainstream yahoos) is to not use AI unless absolutely necessary. estrogen good.
lots of info on youtube channel 'TOT Revolution' with Dr.s Sheehan, Kominiarek, Rouzier, Nichols, etc... the Jay Campbell guy kind of hard to take (for me at least, with his "Blowtorch Diet" BS) - but those doctors (especially Rouzier) generally recognized to know their stuff.