That's tough. You could try 2 ways. 1) find a mothers group or similar in another area or 2) find a way to learn about the new culture. An example may be volunteering at a library or migrant resource centre, helping with english literacy or something. You could try to learn the language. That will show your willingness to integrate and get to know the locals.

With making friends, sometimes you need to be the one making the effort at the start. It can be an interesting learning experience, especially for kids.