There are some myths that say that if you do have some sort of sexual position, then you could have a baby boy or a baby girl, just like you like, and I'll explain you in detail why that's a myth. This is all about gender selection and it's more likely that you can't do this natural, whetever you like or not - the fact is that there are millions of sperm cells there and if you do a sexual position or another you can't have 60% chances of getting pregnant with a boy or a girl, but in fact, the ugly truth is that the chances are something like 50/50 and you have to realize that before you do some other nasty things - you may want a boy as bad you may have a girl, but you may get lucky and get twins, who knows.

   Let me tell you want thing straight - it's not the moms fault that she got pregnant with a boy or a girl, but basicaly it's his "fault". The fact is that gender selection is kinda simple and the responsible for it is the male - why am I saying this? The fact is that the only responsible for this is your male sperm because your egg only has one geneder selection chromosome the x - for the girls, and the male has both the x and the y, if they are to x then it's going to be a girl, if it's xy then it's going to be a boy. Basicaly, altough you may try it natural through sexual intercourse in a positon or another, you can't get pregnant with a boy or a girl, but this is a myth - the fact that is a myth is decided because it's not scientificaly proven and statisticaly - because of this fact it remains a myth, and either sexual position you use, you're not going to get it.

   You may get a baby boy if you do some sort of sexual position, but the fact is that the chances are just 50/50 - you can't get whatever you like, the fact is that there is a big coincidence or rather faith or something natural if you do get a boy. 

   The myths that the y cell lives less and floats faster, are just another misinformations around the web - basicaly they can be true, because the male cell tends to be smaller, but the fact is that won't help your sexual position and anything else to make a baby boy or a baby girl. The fact is that you should have faith and trust the fact that there are millions of x and y sperms cells down there, and you can't just play with it, playing with gravity and stuff. 

   So, what should you really do? The fact is kinda simple and you have to keep in touch - ovulation is the best time and there are the best chances of getting pregnant if you keep in touch. When the women ovulates the egg is there and you have some sort of 24 hours to get and penetrate the egg with a y sperm cell to get a baby boy 100% - the real fact is that you can't control the x and y sperm cells and altough they do may live longer or be weaker, the fact is that faith and a random number is going to play with your baby sex and gender selection - no you.