What will happen if I don't have my invisalign braces for 2 days?

Hi, I'm currently away on holiday and have just lost the top of my brace. My top teeth are already quite straight (got invisaline mainly for bottom teeth) so not being dramatically moved and I had my brace on for 13 days prior to losing it. I unfortunately didn't bring my next set with me. I now won't have the brace for 48 hours! Is this going to move my teeth back? Any recommendations on what to do? Thanks