Don't kill my vibe....

Am I overreacting or is the pregnancy hormones? My husband went to work and we were on the phone due to me getting home from school so I didn't have a chance to even say bye anyways, he kept saying how his boss changed the schedule for some drivers including his, so I wasn't clear about what he was talking about and told him is ridiculous how they keep changing hours and he thought I was thinking he might be cheating so he just said relax ok I'm at work and I simply told him yeah I know and he just said bye. So since I was inside my car I had the phone connected to bloothtooth connected to my car so I didn't hang up and he clearly said "bitch don't kill my vibe" so I textd him and he clearly says I was singing a song I don't even know what to think but for some reason I feel sad. Wth!