according to the book, if both lines lie above the horizontal line and the peaks of both lines are perfectly overlapping, most likely it is a boy. but owing to the small sample of this case, the author suggests avoid dodo on this peiod if an exact gender is expected.
i've encountered some info about the meeting of egg and X/Y sperms. actually, an egg is surrounded by a hundred of sperms (including X and Y) before a winner go into the egg. some believe that specific nature/state of an egg determines the winner -- X or Y.
while it is commonly believed that Y is a fast swimmer with shorter life, how to explain the choice of egg when both sperms X and Y present at the same time? obviously, sperms determine the sex of BB, eggs still play a mysterious part in that process.
not really. only eat more vegetables, fruits (banana),
less meat, avoid sticky food (shark fins, to maintain liquidation of body liquid), less sour drink (e.g. yakult), and take vitamin E to guarantee the good condition of egg and amount of sperms, no alcohol.
it is our personal way, not base on any theory.
the only difference for 2 pregnancies is that we took vitamin E before the second bingo.
you can get the graph of nov 1999 to see if there is a good chance for boy among the 17-20th days of that month. since i don't know your birth date, hope it can help.
p.s. i don't have your email ...
i have to go now, i'll come back at 11.30pm.