Third trimester emotions

Does anyone else have crazy intense emotions in the third trimester? My husband and I are getting in crazy fights all the time, we are both feeling entirely overwhelmed, and I am just extremely exhausted and moody all the time. We also have a five-year-old who demands a lot of our attention & does not give us a break. We do a “quiet time” every day where she plays quietly in her room but that never works out… she comes out of her room about 20 times in an hour. I just feel really emotionally unstable right now and was wondering if I’m the only one.