Originally Posted by forestmushroom
Of course there are different variables for each pregnancy, but on pure chance it is 50/50. Either you are having a girl, or a boy (unless you want to consider the very slim possibility of a hermaphroditic child as a 0.0001per cent chance...)...
If you are looking at groups of people and trends, there may be certain times when more boys are born vs. girls, but for each individual birth its either a girl or a boy... so it is 50/50. So while there may be other variables (timing, amount quality of sperm, etc.) this doesn't change the possible outcomes. The fact that I had given birth to two boys did not factor into the situation when my daughter was conceived. It was a new roll of the dice. ...
People do not have a 50/50 chance of conceiving either a boy or a girl. That's a myth, however common a myth it may be. It's not possible to predict what your odds of having a child of either sex actually are, but 50/50? Unlikely. For instance:
Poor people are more likely to have girls. Rich people are more likely to have boys. This is true across all cultures, and it isn't because of people aborting babies. It's true in places where people have no ability to find out the sex of the fetus ahead of time, and it's true in places where they can. Google the Trivers-Willard effect. You'll see some very interesting things.
Underweight women have more daughters.
Women who are a healthy weight and eat a wide range of nutrients are more likely to have sons.
If either parent smokes, they are more likely to have girls.
Optimistic women are more likely to give birth to sons.
Older parents are more likely to have daughters.
Women rated as attractive by other people are more likely to have daughters than women who aren't considered pretty.
If you're tough and confident, you're more likely to have a son than a woman who is shy and easily intimidated.
Parents who lived together before conception are more likely to have sons than parents who did not.
To say that you only have 2 possible outcomes and therefore there is a 50/50 shot at having either one is simply not true. That's not how statistics work. When I go to sleep at night, I will either wake up again or I won't. Those are really the only two options. That doesn't mean the odds are 50/50, just because there isn't some third option. There is a much greater chance at my age that I'll wake up again than that I'll just die or be killed in my sleep.
Again, it's not possible to predict any particular couple's odds of having a child of a certain gender, since there are many, many factors that influence all those things. Imagine a poor woman (more likely to have girls) who is bold and confident (more likely to have sons) who smokes (more likely to have daughters). How do we determine her likelihood of having either sex at any point in time? We can't. That doesn't mean her odds are 50/50. It means we don't know what they are, so the best we can say is that it's about 50/50. However, if she's a 45-year-old, shy, easily intimidated, smoker, who lives below the poverty line, her odds of having a girl are greater than her odds of having a boy. That doesn't mean she can't have a boy, obviously. It means the odds favor her having a girl. There is a not a 50/50 shot each time she has a chance to conceive. There is some undetermined and undeterminable shot, based on her own circumstances as listed AND on the timing of sex and other things. It still isn't that the odds are 50/50 each time. We just don't know what they are.
As I already stated, for all practical purposes, you might as well say 50/50, because there's no way to determine your particular odds. However, your environment, your socioeconomic status, your food choices, and even your looks and your personality all have an impact on how likely you are to bear a child of either sex. I thought it was interesting to share that information, not to say anyone was wrong (since I already said we don't know anyone's particular odds anyway, and they're 50/50 on a population level) but just to share information because it's a very interesting topic for anyone who cares to learn about it. If you don't like it, feel free to ignore, but don't say it's wrong just because you don't know anything about it.
***And even in your particular situation, you actually WERE more likely to have another son than to have a daughter. Research has shown that having a son actually increases your odds of having more sons over daughters. The best guess currently is that carrying a male child to term changes the uterine environment in some way, making it more hospitable to male fetuses. Doesn't mean you couldn't conceive and birth a girl child, obviously. It just means you were less likely to do so.