Time with in-laws ? Advice needed

So my fiancé and I are living with his parents in their basement apartment while our house is being remodeled. Every night I stay downstairs and do housework (vacuuming, bathing our two year old putting him to bed etc. While he drinks whiskey and hangs out with his family. I’m 20 weeks pregnant so I’m obviously not doing any drinking. I’m really just starting to feel bugged that he spends SO much time with his family while his family is downstairs. I really spend minimal time around his mom because she’s nasty to me and i figure the less I’m around her the less chance she has to upset me or make rude comments. Am I wrong for feeling this way? Is it the hormones?😅😅