Hi lauren2030, welcome to the board.
That's a tough one. I don't believe age matters. As for time, well, for some people you need time to get to know them and for others you don't. But, the fact that you're asking for opinions on the matter tells me that you're undecided, and this early on, that should be a sign to wait and see how things transpire. Allow nature to take it's course and see where it leads you. When it comes to a big step like living together, if you're not sure, then you should wait. Too many good relationships fail because the couple rushes into the big things, or the next step.
But that's just my 2 cents. Ultimately, you have to do what feels right to you. Just listen carefully and closely to yourself, and you'll know what to do.
I hope that helps.