Any else due their AF tomorrow?

yes its possible, the hcg level builds up differently in everyone. most people will get a positive once they have missed a period, other people still wont get one for another week or 2 after. i am due on tomorrow aswell but very unlikely im pregnant, but i admit id be happy if i was! try not to think about it too much, if your period doesnt arrive give it another day or 2 to be sure and test. you dont want to get excited then be disappointed with your period. if it cheers you up a bit i had cramps from around the same time as you have been then i got my positive at 4+6 weeks. good luck.