Overbearing friend

I have known my best friend for 6 years nearly. She's probably my only close friend. When I told her i was pregnant, she started with the whole 'this is my baby' spiel. She's so overbearing and won't listen. She's insisting that she comes in the delivery room, that she will stay over at mine and do the night feeds etc. I have told her as nicely as possible that I don't want her in the delivery room as the child's dad will be there, that I don't need her to stay overnight as I'm fine alone. I've raised 2 kids by myself I know what the craic is.

She's more of a frilly clothes kind of person and I hate them and won't put them on the child. She's insisting to buy them and I told her nicely, don't waste your money, I don't like them I don't put them on her. I have bought every thing and don't need anything else. I suggested If she really wants to get something then just get a voucher.

She's now moaning I haven't let her buy anything. This is because she has no money and is struggling to support her own 4 kids at the moment. I wouldn't want her to buy something if she could be buying her own stuff.

Her newest gripe is I'm not showing enough. I have no bump as such. I'm 19 weeks and I look no different than when I wasn't pregnant. She's complaining that she knows other people who are at this stage and they have bumps... why haven't I. Just because I'm not running about telling people I'm pregnant and getting my belly out. It's no one else's business.

I'm literally avoiding her now because she's not listening to me and I am sick of listening to her go on.

Does anyone have any advice on what I should do?