"as usual none of the anti-choice people are offering practical help."
I saw suggestions of telephone counselling, Homestart, getting a nanny/au pair, advice to see a GP regarding depression, so I think we must be reading a different thread, specialsubject. Or are you meaning that those of us who wouldn't have an abortion should pop round to the OP's house to personally help?
exquisite, I am very sorry that you find yourself in this situation that is clearly very difficult and worrying you. I've suffered from lots of nausea and vomiting in all of my pregnancies and have needed some admissions.
The things that have helped me is people bringing out meals, helping out with housework (a lawyer friend of mine came round one evening just to deep clean the kitchen!), nursery a few mornings a week for the children to give both them and me a break, ready meals sometimes, throwing the children out into the garden while I sit at the open French doors with a cup of tea, going to bed as soon as my DH gets back from work.
I have tried to balance out the guilt in my head for not being a great mother during pregnancy by remembering that (as much as it really does drag on at the time and feel it will never end) it is for such a short time in their lives and how wonderful it is to see their relationship as siblings develop.
Don't feel guilty about getting more childcare. It really is a very modern invention that one mother stays at home on her own with her children all the time. Before people lived in far better community with childcare shared amongst the family and neighbours (or indeed staff but that's not the circles I would have mixed in, unless I was the staff!). My DC have a great time at nursery getting to do things I just don't have the energy for - or sometimes the desire for (full body painting at home, I think not!)