My family intrudes my home

Ok my sisters have lived with my husband and I on and off which didn’t work out. My husband and I are 23 and my sisters are 22and 20. My husband works hard for our family to have a nice home and our kids to have what they need. We have two little ones and I’m due in 2 weeks. My dad has been living with us for a year, he’s a felon. But we’ve asked him to look for his own place because he is in our babies room. I’m due in two weeks and hes still in my babies room and he keeps saying hes looking for places but he keeps getting denied. My husband has offered to put a apartment in his name for my dad and he didn’t wanna take the offer. And my sister comes and uses our home like a motel everyday. It’s really effecting my relationship with my husband. What should I do? I’m so stressed with all this going on and I feel like I haven’t done anything before my baby comes