Military foster/adopt pros/cons?

Hello everyone, I'm new to the group and I have a couple questions. My Hubby and I have talked about fostering before he told me he didn't think it was a good idea since he thinks I will get wayyyyy to attached. And we have talked about adopting since I seem to be broken in the baby making department. But here are my questions, before I actually get info from an agency and they send me everything we are military, we live on base we don't have any kids however I have 3 very large dogs they are my kids for now. I don't know if due to us being military and moving all the time if we would qualify for fostering. We are in CA now and hoping to stay here for a while since this is where I am from. Any information would be greatly appreciated. Also we can foster to adopt right? Also about how much money can we expect to save for adoption process? i know I have asked a lot of questions but I appreciate it all! Thank you very much!