Conflicts between my kids and bf

I don’t know if to feel depressed or just give up but has anyone ever had the trouble of your kids not getting along with your spouse I’ve been with him for almost 8 years and pregnant now 6 1/2 months it’s like the disrespect is around all the time it got to the point where is so bad and I’m pregnant and emotional and I think this relationship will not work and now I’m having another baby and I’m freaking out I left my job to help him and trying to find another job while almost having baby is to stressful😩 and then who the hell hires a pregnant lady that is almost about to pop 🤦🏻‍♀️