Does anyone seem to get meaner during their pregnancy. I'm usually really bubbly and happy go lucky…

Does anyone seem to get meaner during their pregnancy. I'm usually really bubbly and happy go lucky but lately I feel like I've stepped out of mean girls. Not only that but I seem to have a dislike for my friends. They're all single and talk about how they couldn't imagine having a baby let alone two, my life just must be over. at least they'll live their life before having a baby... blah blah blah. I just smile while having the incredible urge to punch them in the face.