Most people say that if you wait 48hrs after feeding then you are pretty much past the regurge point. But that by no means rules out the chance of them regurging after 2 days. I'm not sure how long after feeding they can possibly regurge though. Make sure to wait 10 days before offering the next meal, which should be smaller than a typical meal. There are several threads about coming back from a regurge if you are unsure what to do. Just do a search on regurges. Hopefully everything works out.