You will have a period only if you stop taking the progesterone, that's why they have you on it and tell you not to stop until your blood test. I think it is only two or three days after stopping them that a period comes. As far as whether there is still hope, what makes you think that a home test two days earlier than the doctor prescribed a blood test is somehow going to tell you that you are pregnant? Why would the doctor prescribe the blood test on Friday, which is the most sensitive kind of test, if a home test (not as sensitive) could pick up a pregnancy on Wednesday? Try to stop stressing yourself out, I know a lot is riding on this, but it's not over until it really is over, and you have no way to know at this time unless you go to a private lab for a blood test. Even then, it might be too early.
ps -- You think you're done because of financial reasons? You just never know on that one, either.