The best advice I can give on the topic is that it’s critically important to make a fully informed decision on the matter. Getting information from heavily biased sources toward having children (e.g. your grandparents who desperately want great-grandchildren) or being childfree (e.g. /r/childfree, the subreddit so miserable that even most childless parents can’t stand it) is not a recipe for making informed decisions. Likewise, evaluating child raising by only observing vocally unhappy parents in your social circle while ignoring the quietly happy parents is an easy mistake. If your only impression of child raising is changing diapers and listening to crying babies, you’re not getting the full picture.
Nearly half of my parent friends thought they would never want children when they were younger. They’re all happy (and deliberate) parents now after revisiting their decisions as they grew older. And that’s fine.
I also have some friends who have decided to never have children and stayed that way. And that’s fine too.
Generally, ignore anyone who is militant that there is only one correct decision (having kids or being childfree). Ignore anyone who harbors hatred or loathing for children in general (kids are people too). And try to ignore the parents who try to make themselves out to be martyrs by talking endlessly about how challenging their kids are. You might have to seek out the happy parents in your social circles to ask what child raising is really like, because in my experience many of the happiest and most successful parents aren’t constantly talking about how happy they are with their decision in the same way that the /r/childfree zealots are actively spreading their message. You have to look a bit deeper to find the reality.