If you've been pregnant before, you might start comparing your previous pregnancies to that of your current pregnancy. A lot of things can change from pregnancy to pregnancy, based on a whole host of different factors (including how well you remember your last pregnancy or whether you're conveniently forgetting some parts), but one of the things that can actually influence your experience is whether you're carrying a boy or a girl. There are some ways your pregnancy will be different if you have a boy versus when you have a girl that, if you've only ever had one or the other before, you might want to know about.
Although some of the pregnancy differences that come with having a boy vs having a girl may or may not be securely rooted in science, since many parents-to-be like to guess or predict if they'll have a boy or a girl, they're still fun to know about. Plus, some of the ways that your pregnancy experience likely will be different if you're having a boy vs a girl actually are based in some science, even if the evidence is still somewhat limited. Paying attention to some of your pregnancy experiences might help you better-predict whether you're having a boy or a girl, but even if they don't tell you much, they can be a fun way to pass the time until you can find out.