There is a method, called the Shettles method, according to which it is possible to become pregnant with a boy or a girl depending on the time at which conception takes place.
According to this method, X sperm (which would give rise to a girl) are slower, but more resistant to vaginal acidity than Y sperm (which would give rise to a boy). Thus, the couple should schedule sexual intercourse up to 3 days before ovulation to favor having a girl, or on the day of ovulation to have a boy.
However, it is important to mention that the effectiveness of this method is quite questioned.
Read the full article on: How do ovulation calculators work out your most fertile period? ( 79).
Silvia Azaña Gutiérrez
B.Sc., M.Sc.
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.
License: 3435-CV
