Hating everyone

Not sure if its hormones or I'm just being a bitch. Since my 3rd trimester and now a month PP, most family has been getting on my nerves. Specifically my SIL and sometimes my mom. I don't know why. I'm wondering if I really hate my SIL as much as I think I do or if it will pass. Before I got pregnant I used to like her 🤷‍♀️🤷‍♀️