I feel so mean:(

Okay so I don’t even really know what’s wrong. For starters I am currently halfway through my pregnancy with my partner and I swear I’m so mean all the time. I can feel myself being so mean to my partner and i don’t know why. I feel like I’m getting irritated by him and sometimes I just don’t even want him around and I’m annoyed. We don’t have the best relationship but I’ve never felt like this. Is it possible that it’s just my hormones? This pregnancy has been throwing me through the ringer so it’s not far fetched. I just don’t know why I’m this agitated all the time, why am I so mean for nothing?