Help!

I’ve been seeing this guy for a year or so. We got really close at the end of our senior year of high school and then school let out and I don’t see him until after I graduated from college. He works at a local office but is often called away for days at a time with little notice. I just found out that I’m pregnant. I know that he is really into me, why else would he spend almost every moment he’s home with me. I just don’t know how to tell him in a way that he won’t immediately react with asking to be stationed at home. Is it wrong for me to tell him that I’ll manage without him while he’s away.