a big mazel tov to you. may you have loads of nachas from all your children.
as others have mentioned, please get help. I am sure in your community they have chessed commitees for after birth which might mean meals, babysitting, errands. take whatever help is offered., even if you feel you might not need it.
It is very understandable that you are not feeling well. give yourself a few weeks. make things as simple as possible. ( paper plates, cups, )maybe you can find a young teenager to fold laundry 2x a week. these little things will make a huge difference. try to send the 2 yr. old out for a few hrs. in the morning. you really need the rest and quiet. you are not just getting over a birth but also a virus. wishing you all the best.