Emotions toward others

I am 31 weeks and I feel like in the progression of my first pregnancy, my capticity for "properly" handling my emotions is disapating. People, especially my family, just really upset/bother me. I feel like no one understands what it's like to be pregnant (emotionally at least). Since in the third trimester, i feel like surrendering to try to make things work with my family. Hoping I'm not alone and discouraged about having them as support during labor and postpartum which I wish wasn't how I feel.