I'm feeling so stressed!

So my FH is in the air force, and since he's changing bases he in March, we can't officially set the date until he gets to his new base. However, I'm planning on getting married in May, please someone tell me this is possible. I already have my dress, the bridesmaids dresses, the favors, the BP gifts, my jewlery, table #'s and various other decorations. I have a RH that is holding the date for me, I booked a photographer, but I don't want to book much else because we won't be able to get our deposit back if the air force decides my groom can't come to our wedding.

I still have to do hair and make-up, dj, limo, the invites I have picked out (along w/ the saying) but not ordered, the officiant will be his dayd (since he's a pastor) am I missing anything else? Please tell me I can somehow get this all together in 2 months! Ahhhh the craziness!