Registration with Pearson VUE

Hi guyz!

Yesterday I received my eligibility notice for NCLEX-RN examination, I didn't expect that it will be that fast since I'm a foreign graduate (Philippines) and was expecting the processing at BRN Ca. will take 4-6 months but in my case it only took 1 month. Now my problem is I can't register for the examination right now, I still don't have the money. Things are just hard nowadays for us because my husband is working less hours and just making enough, everybody is aware with whats happening to the US economy. We are one of those affected, I really don't know what to do. Anyway I would like to ask if it will be ok if I'll register on January or should I register as soon as possible? and also is the ATT good for 1 year or 90 days or 65 days? Please help me out, Im just so confused. Im happy bout my eligibility but on the other hand I feel too bad coz I don't have the money.