B.M.
Hi Ursula,
Most churches want you to be a member, but its not mandatory. With my first son, we weren't a member and we had him baptized of the church where we did it.
You can go to a non-denominational one or one that is of the same religion as you or your husband.
Call around and see what the "rules" are.
B.
p.s. we are in the same boat . . .my youngest is almost 2 and not baptized yet. We feel awful because his brother was baptized at just a few months. We don't have a "home" church either. :-)