is he getting deployed?!?

my boyfriend is joining the army as a 31bravo (military police) and I'm super scared. we're getting married before he enlists and our son will be 3 1/2. I feel like his chances of deployment are higher with this job. plus we're going to be living on base. I'm super new to this and it's a big change. if anyone could give me any advice or suggestions to make things easier I would appreciate it. also if anyone has a significant other or knows someone that is a military police officer can you share your experience with me please