Abnormal? Only attracted to girls who want children, even though I don't want to be a dad.

So here's the deal. I (32M) do not want to father children, but having a girl have my children sounds great. I'm really only attracted to girls who want to be mothers, although I necessarily do not want the responsibility of being a father or around the children too much. But having a girl bear them and care for them is something that I would really want. Am I somehow abnormal and weird or is this a common mentality for some men?