Let's start with the anatomical introduction. Male spermatozoa are divided into two types:
- with a set of X chromosomes;
- with a set of Y chromosomes.
The girls are born from the combination of two X-chromosomes (XX), and the boys from the combination of X and Y (XY). As you can see, if you are interested in how to conceive a boy correctly, you should ensure maximum passage to the uterus of the Y-spermatozoon.
We will figure out how to do this.
Pose
X-spermatozoa live up to 5 days in the acidic environment of the vagina of a woman, they are slower moving and have larger sizes - the chances of survival are clearly higher. Y-spermatozoa live 24 hours, they are smaller and faster.
So, in what pose to conceive a boy, with the understanding of the above? The pose should promote the maximum ejaculation close to the uterus, so that spermatozoa with the Y set "won" the race in X-spermatozoa.
To do this, all the poses are suitable, where the woman is from below and where a man can enter his penis as deeply as possible.
The most popular and tested:
- "missionary position;
- posture of "doggy style" - a woman stands on all fours, a man enters the vagina from behind;
- pose "spoon" - both partners lie on their side, the man enters from behind.
From the point of view of physiology, women need to pay attention to the possible presence of bending of the uterus :
if there is a bend, determine in which direction and lie just on this side for conception; If the cervix is located above the usual - you will approach the knee-elbow position.
When?
But the pose is not an absolute guarantee. When considering the question of how to properly conceive a baby boy, pay attention to the date of sexual intercourse.
For the conception of boys make love 24 hours before the onset of ovulation and 12 hours after ovulation.
Again, the reason is in the short life of the Y-spermatozoa, and the prolonged preservation of the X-spermatozoon in the vagina. In addition, it is recommended at least two-day abstinence partners, so that the vagina at the time of conception were not accidentally X-chromosome from the previous sexual intercourse.