Mental health during pregnancy

So I have been having trouble sleeping and eating from couple of days and I think or I'm sure that I'm kind of feeling disturb and mentally tiered. I'm just not feeling happy any more it might be depression but people around me especially my husband and my son gives me lot of love and support. Sometimes I feel like I'm not paying attention enough to my 2 y/o son in last weeks of pregnancy and treating my husband badly ( like shouting at him or asking non stop favour and getting angry at him) tho he calms me down not getting angry back at me but asks me if I need a break ( he's working from home). But the problem is the other person who is living with us is his sister ( who comes late at night around 3ish in morning and talks on phone for hours and our room wall is shared with her rooms so we can clearly heard her talking) she's very very loud on phone and I don't know we never speak to each other more than saying hello and bye.

It's so awkward around her all the time and whenever she talks with me it means it's an argument to be.

She only speak with my husband upon something and that lasts less than 2 minutes but she goes around other siblings and talk to them and share her plans and god knows who she talks with or stay around during this pandemic.

And she made a headache for us by starting kitchen renovation and never attempted to finish it and it's been six months only me and my husband managed to paint, and put all drawers back and during this hard pregnancy we finished what she started and its still going cuz she can't make up her mind and she can't finish it either and we stuck with her stupid plans again. Tho we did said it's no good idea but her clear words were I don't care what we think.

I guess I just needed this out of my system about her behaviour and future that she's seeing that guy and soon to be getting married but problem is this family doesn't share their plans with me and my husband at all. We find out right on that day or when it's been done.