ok so more problems, and more ways to overcome them
put an ad in the local college, if they will let you
heck, put an ad in the local rag, asking for people doing childcare courses and interested in helping out with newborn twins
car-wise, you'll have to do without if you can't afford a new car. so find out about public transport etc.
see if you are eligible for any grants to do with pregnancy/new babies anything like that. call CAB if necessary to find out what you might be entitled to.
sell old car and put money aside.
we bought a renault scenic for just under £3k. about 5 years ago. you'd be able to pick one up for a lot less than that now, and we could fit 3 seats across the back in that.
are your parents willing to lend/give you any money? if you don't ask you don't get. if they are then you coulld use it towards post-natal doula, or new car