The placenta.
the placenta, it gets expelled out after the baby is born.
placenta
There are no endocrine organs unique to a pregnant woman, unless you consider the placenta an organ, which it is not. The fetus has endocrine organs (hypothalamus, pituitary, thymus, adrenals, ovaries/testes, etc.) which would only appear in a pregnant woman.
This question is oddly worded. You might be talking about the placenta. Or the hormone HCG. But I am not sure based of your question
No, This is only an Old Wise Tell.
Absolutely not. Women can only become pregnant when sperm enters the vagina.
No only a man needs to ejaculate in women to get her pregnant.
Pregnant women and women who could possibly be pregnant should only receive orbital x rays when absolutely necessary
Santa Claus is a man and only women can be pregnant.
no, only males can get pregnant, everyone knows that...
no, only with sperm from a man
Only on Thursdays