Struggling

32 weeks pregnant and literally don’t have the patience anymore, dads very active in there lives and has then on his 4 days off after working 12 hour shifts/night shifts so he literally never stops! Mum always tries to palm them off with us for longer even though she gets every Wednesday and weekends off work. Whilst there here all they do is cry for there mum which obviously makes him feel crappy. There only 3&4(nearly 5) but there’s no manners, they fight, don’t acknowledge me in the slightest when I speak to them or say good morning even when my partners working overtime which means I’m alone with them and caring for them. I used to be able to tolerate it but now I’m just fed up! Not sure if pregnancies having an effect on it all but I am tireddddd