This isn't weird, it's perfectly normal. Many girls feel their maternal instinct and longing kick in when they hit puberty. But to act on this at such a young age, that's not okay, or normal.
I'm sure your dream was very vivid. Who's the father of this baby you dreamt about? Don't know. No one does. Not even you. You'll likely meet someone when you're a lot older, fall in love, get married, and then have children with him. But there's really no way to know his name at this point in time.
If you love babies and want to be around them, then why not start babysitting? You can have all the perks of caring for a child without actually having to pay for a child. In fact, they'll pay you.