Anna, you can borrow this book call "What your doctor may not tell you about breast cancer" how hormone balance can help save your life. by John R.Lee from library.Inside the books gives you lots of info about hormone.. know how estrogen and progesterone works and alot more..you will eventually know the answer for yourself.
I myself just borrow it..Its very good, great info..get to understand the work of human hormones better..
thats was a reat link to simple information on wild yam cream I have been going back and forth on using it, but wow, this site offered a lot of good information. thanks!