Husband leaving 😰

So my husband has been talking about driving trucks for a while . I wasn’t on board with it being that I was pregnant at the time . I just had our daughter 2 weeks ago. We currently live with his parents as well. My husband has a good job on the army base we live near but he feels he’s not advancing being that the position he’s in doesn’t require much experience . Basically it’s a very laid back job. But anyways , he applied for the trucking job and he was approved . He’ll be leaving for a month to Arkansas . We live in North Carolina . We’ve been together over 5 years and NEVER EVER been apart . I broke down so badly yesterday because I want to be very happy for him but being a new mom left by myself without my husband is not a good feeling . Now I don’t need anyone getting on here trying to bash me . Cause y’all are good for it . I just want some positive constructive advice . And again this trucking job is over the road so he’d be gone a lot . How do I handle this ? And still be supportive ?