super emotional girlfriends who want kids but you’re not ready
You have to be real with them, that's one the most important things for a girl, see if she can wait until you're ready, otherwise, maybe it's better you two go your separate ways, because she likely won't change her mind and she'll resent you (with reason).
As far as her mood, yeah, work can be pretty stressful, generally some good D can help a lot, try to make her feel very appreciated sexually and fuck her as good as you can
That's also important, if she hopes she's getting this unreal relationship and it doesn't line up with reality, she's gonna be pretty mad, trying to cope. Don't get her used to good things you can't keep up (like nice dinners at expensive restaurants, some other really time or money consuming activities, think about the future, how you want your relationship to be, and try to mirror that now as well)