Oh Hun it is hard. My OH is in the army dont see him more than I see him.
He away for a week to america soon, then gets back, goes away again for a month, then back for our wedding then just after wedding he goes away to Afghan for 6 months
It was hardest when he was in Iraq last year while I was pregnant, I needed him and he missed so much (scans etc)
Every time he goes away it upsets me, but I put on a brave face for him as its his career, and its hard enough him having to go, wthout me breaking my heart all over the place.
Remember he will be home to see you when he can, the basic trainings crap as they are stuck on camp, but once hes passed that its a bit easier for him to come home (as long as he in UK)
I will say always be prepared for the worst, if he thinks hes gonna come home say on a friday, tell yourself hes coming home saturday in case the army mucks around.
Always be prepared for him to drop some news on your head, like hes going a course for a few weeks, with very little notice.
I always think though, I would rather not see him very much but have him in my life, then not have him in my life at all