Military wife to be

My fiancé is in the military and we've been planning our wedding that's in September. We went out to dinner to see if we wanted the restaurant to cater. The restaurant was fine but not what we're going with because he admitted at dinner he got a call that's he's getting deployed. We don't have to change any plans but in under 5 months we are  married and less than a year he's gone. How do you remain happy and plan your wedding as youre also planning for his deployment and have to talk more about the future, kids, a will. He's been deployed before but we weren't together then. Any tips on getting through deployment?