Too soon to fall for someone new?

So my ex dumped me 5days before Christmas (and found out he was cheating). So I jumped on a dating site so try to renew my confidence and found someone pretty awesome! My only thing is it's only been a few weeks and he already wants to move in together (and I have a 2 1/2year old), start a family with me and even marry me! (It's everything I want in life but is it too much to soon) help please!!! TIA