Assess your expectations.
If you decide, "Yes, I love this woman and I want to bask in her morning breath every morning, and order take out with her into the unforeseen future, and I know the weight of that decision," you should definitely check in with her and see if she's on the same page about what moving in means.
Do you see it as an exercise in mutual frugality, while she sees it as a step towards holy matrimony? If you can’t talk about your relationship and where it stands honestly, you’re probably not ready to move in together.
At the end of the day, whether you'd like it to or not, moving in makes your relationship far more serious. Moving in shouldn't be a step you take casually. It shouldn't be something you do solely because it's convenient, or financially practical, or because you have no other options. It should be something you enter into with full knowledge of its weight.
If you both know that, and are excited about taking the next step, you're ready. Clear eyes, full hearts, can't lose.