Modern science tests often come to a blind end.
All tests, hormones normal does not mean that everything is OK.

A Dr. looks at only hormones. If a woman is not menatlly ready to
conceive out of fear of added responsibility, no conception even if
hormones within normal range! A woman can conceive without menstruating, even in
menopausal years![Weed, Susun S. Menopausal Years. Ash Tree Publishing.
Woodstock, NY: 1992. 39]

How mental forces, astral forces shape the emotional and body rhythms
still remains a mystery to science, despite number of studies by
researchers. Due to the matter in the brain at birth, the difference between man
and woman is far greater, and woman is the victim of her hormonal rhythms as
shaped by external forces, as
expressed at:

http://groups.yahoo.com/group/ayurvedaonline/message/4622

But the ideas expressed by dr Raymond Bernard do have substance,
somewhat similar ideas, but not taking the extreme view as he takes
are expressed at:
http://groups.yahoo.com/group/ayurvedaonline/message/9777
________

Read this link or better try to find the book of dr Raymond Bernard
> " Physiological Enigma of a Woman"
> http://books.google.ro/books?\
id=a82UXcSRzMsC&dq=Physiological+Enygma+of+a+woman&printsec=fro\
ntcover&source=bl&ots=nIYgm3Nh0O&sig=gKWKM963f6h_Zj6Qx\
Mw43tU1Q1A&hl=ro&sa=X&oi=book_result&resnum=1&ct=result
...

don't put any pressure on your daughter suggesting that it might be
something wrong with her, if all tests are normal