nesting

I'm 38 weeks and I keep getting asked if I've "nested" yet and my answer is always no. With my current situation me and my boyfriend are living with his parents because we can't afford to be on our own yet. I'm tried to prep for the baby and set everything up but it's so hard being cramped in this one small bedroom expected to try to fit what you need for a baby. On top of that they have 3 dogs and a cat. I'm highly allergic to cats and my allergies aren't so great with dogs either, on top of that I have asthma and dust is a huge trigger. Well my mother in law doesn't dust or really clean much. So the house is just animal fur and dander and dust all over the place. If I don't dust the room every 3-4 days it gets so bad dark wood furniture is white. I feel like no matter what I do it's just a huge waste of time because in a few days you can't even tell anything was done.  I feel defeated and depressed and I'm not sure what to do. I'm offered my boyfriends mother to let me go through and clean, dust and really get everything up and nice and just over all clean. But she said no she's do it but nothing has changed. The baby can come at any moment now and all I feel is sadness nothing is ready, I can't get anything ready even if I tried and I'm just stuck here until I finish college and start working. I'm not sure how to turn my mood around.