Hi Alexandra,
Hello from Brooklyn! Don't worry - if you renew your ICOM membership today, you'll get an email from ICOM showing membership and proof of payment that you can show until you get your card. I've had to do this many MANY times while waiting for the renewal stickers to come through the mail, and have never had a problem.
Have a great trip!
Lauren
------------------------------
Lauren Fly
Conservator + Collections Manager
Brooklyn NY
------------------------------