The sex of baby is determined at conception by the sperm that fertilizes the egg. Some sperm carrying X chromosomes designed to produce women, while others carry Y chromosomes designed to produce men. In the 1960s, a biologist and researcher in fertility called Landrum Shettles Brewer proposed that the time intercourse are made in relation to ovulation may increase the chances of conceiving a particular gender. The Shettles method for gender selection is based on the theory that the X chromosome bearing sperm move slower and live longer in an acidic vaginal environment, while carriers of chromosome Y move faster and die earlier. While there is still no proven technique for gender selection, this is one of the most popular methods used by couples.
To conceive a girl
Follow your menstrual cycle for a few months to know when you ovulate. Add your waking temperature every morning, at the same time; Your temperature will rise sharply just after ovulation. During ovulation, cervical fluid will be clearer. See if it is more elastic and slippery; should have a similar consistency raw egg.
Confirm your day of expected ovulation prediction test home ovulation.
Ten sex two or three days before ovulation. Choose one position like missionary, which creates a shallow penetration. Thus, more sperm Y chromosome die before reaching the ovum and sperm from slower, hit the X chromosome cervical while ovulation.
To conceive a boy
Knowing when you ovulate is essential for this gender selection method to track your menstrual cycle for a few months. Add your temperature every morning at the same hour before getting out of bed. This should be done daily, without exception. Looking for a drastic increase in temperature as the indicator that you are ovulating.
Confirm your presumed ovulation day with a home test for predicting ovulation.
Ten intercourse as close to ovulation as possible. Pick a position that offers deep penetration, as the entrance from behind. The positions that allow deep penetration will increase the likelihood of having a child, according to this method. The faster the sperm of the Y chromosome, the less you have to travel and get to reach the egg before dying and before the sperm slow chromosome X.