Getting pregnant or no?

So me and My boyfriend talked and I think we're ready to have a kid.. One thing though He is planning on going into the marines they said he would possibly leave in January for 3 months or he can probably say February if there is a spot. Now if he goes and we get married and I follow him they can put us in any state. Now I think we should have a baby before he goes so I can have the baby here with the family to help us for a little bit before I just totally leave cause I don't wanna have a baby somewhere else with no one around when it's born. What do you think? Should we wait until he gets stationed after January or should I try to have one now before he goes and he will be here when she is born.