My sister and her boyfriend moved in with my and my mum after traveling and then fell pregnant. We get on really well when we are apart but we clash when we live together. She has always been really particular with how things are but since she got pregnant she's out of control and it's driving myself and my mum crazy! She snaps at us all the time, she doesn't want the help we try and give her, nothing we do is good enough for her and on a daily basis she upsets us or makes us feel stupid. She has 7 weeks left and she still hasn't found anywhere to live - baring in mind we live in a small cottage so it's already cramped. I know hormones don't help but she has turned into mega bitch and it's starting to make resent her. I have already done so much for her, I have brought her things to help her, I have already spoilt her baby rotten and I'm currently crocheting a blanket for the baby which I want to just burn because at the minute my sister doesn't deserve it. I'm supposed to be organising her baby shower too but everything I have suggested isn't good enough. We are on a very tight budget and my sister is demanding a £100 cake!! Someone please help me, I'm pulling my hair out here 