Potty training in 3 days? Help!!!!!!!!!!!

My daughter is 2 and we've been working on potty training. So far she's figured out that when she sits on the potty, she's supposed to go pee and that's good. She knows what it is and the word "Potty" she's also figured out that we don't pee in the pool and will actually get out of the pool to go pee.

So we know she's ready and she knows when she has to go.

But we are down to 4 diapers and currently can't afford to get any until next weekend (money struggles, please don't bash me for it...)

Anyway.. I've been told you can potty train in three days, PLEASE any one who has done it or knows someone who has PLEASE PLEASE PLEASEEE give me some tips!