Mom/wife

I’m a ftm (first time mom) and my husband and I have been having problems since the pregnancy my baby’s only 4 weeks old and there are so many problems between me and my SO I want to leave for a while and think about our marriage but I don’t want to keep him from the baby.(he’s in the army so he can’t really leave if I do) my closest family is 3 and a half hours away what do I do?