While the universe makes a big deal about how vampires have to miss out on the magic that is parenthood, particularly when it comes to women, it’s really not something that is at the top of Hope’s priorities, particularly not at this stage of her life, and it’s also not been something she’s given a lot of thought to over the years. It also entirely ignores the many valid ways parenthood can be a thing, either via adoption or magically transplanting babies from dying witches into a vampire who is technically incapable of conceiving). Either way, Hope has no desire to become a mother any time soon, if at all.
Being praised as a miracle baby who never should have existed is not as inspiring to a child as some might think. Coupled with the near-constant death threats and the requirements to hide who she was from everyone she cared about, Hope saw very little merit in the way her childhood played out. More than anyone, she is aware of what that kind of life can do to a child, so it doesn’t make sense why she would want to bring a child into the world who would inherit the same problems and enemies. Everything that Hayley feared for Hope would be the same fears she has for her own child, and it just perpetuates a cycle that she's unwilling to put them through.
Furthermore, during the course of the show, Hope is still very much a child, and idk about most of y’all, but motherhood wasn’t really at the top of my list when I was that age. I know for some people, that is their life goal and I’m not knocking that, but I just don’t see that for Hope at this stage. She has grown up with that life, with a preview of knowing exactly what people would do to hurt a child of hers, and she is too cynical to put them through that. She also just straight up wouldn’t want to do this without Hayley.
Hope, unlike the rest of the Mikaelsons, has a bit of a different take on family. At the end of the day, the Mikaelson relationship is one forged by blood. That’s why it is such a big deal when they accept Hayley unequivocally as a Mikaelson, because in over a thousand years, pretty much no one else has been able to be a part of that bond. Hope, despite all of her issues with Salvatore and its students, grew up with peers who eventually become friends. They become people who she would lay her life down for, even if it takes her a while to get there. To her, blood isn’t the end all be all.
It makes sense why Rebekah is so adamant about having biological children, because her entire life has been defined by a family vow bound by blood. Also, for a great majority of her life, women were defined by their ability to have children, and that kind of social thinking doesn’t disappear overnight. But Hope is born of a completely different generation, with a very different upbringing. She has been taught that family can extend beyond just blood relationships, and that it’s okay to embrace that.
It’s not to say that Hope is forever turned off by the idea of being a mother, but simply that having biological children is not something she is interested in, nor is it possible for her at this point. If she ever does choose to be a mother, it will be in a situation where she adopts orphaned supernaturals and it would be in the distant future, probably after she has been able to experience a few lifetimes on her own. Hope also is physically frozen at 18, which provides additional complications to being a mother while also trying to hide among humans.