Answers:
Estrogen / progesterone , resulting in change of male sex traits to female.

---

The answer to this give somebody the third degree and many others
you might enjoy are available in this site I am
posting:
http://www.usc.edu/hsc/dental/pthl312abc...

There are different hormones involved surrounded by
all this: androgen, progesterone, testosterones,
and even estrogen.

---