Military husband..

I am due in 13 more weeks with my first child but my husband is wanting to go into the Navy so he can provide a good life for us and our kid. I told him I don't like the idea because I wouldn't want him to miss out on the baby's life. Also, I have server anxiety and being separated will only make it worse. Does anyone know what the longest time him and I would be apart for? I know since we are married, I can travel with him. But boot camp and other deployments are my concern.