Estrogen vs progesterone

[prsndwg]

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which one makes the endometrium and which one maintains it?
I think Estrogen makes and progesterone maintains it!!??

 

[DATlongshui]

Estrogen – thicken endometrium
Progesterone – development and maintenance of endometrial wall


Progesterone is made only by corpus luteum, i.e. after ovulation; whereas estrogen is made by follicle as well as corpus luteum.