Stressed out Boyfriend

Nique

today I'm 18 weeks with our first and lately I've noticed my boyfriend being a little on edge. We will hopefully move into our first townhome in November. I feel like he's stressed and especially now he doesn't like expressing "negative" feelings because he doesn't want to upset me. I don't really know what to do. So I've been leaving him alone and not asking...anyone elses significant other stressing out?