Confused

This is my first time posting on this app and i'm hoping to get some help.

I've been in a relationship for 3 days now but i'm already wanting to have kids woth him. We talked over the phone all night and talked about kids and he says he's ready to have kids and while i was aty friends baby shower today i got major baby fever. So i was wondering cause me and my boyfriend are going on a picnic tomorrow and was wondering of i should talk to him about it a little bit more or if i should wait. At this point i'm very confused. Please if anyone can give me advice that would be great.