I now give myself pump vacations. My first was when I took a trip to NYC. It was easy without the distractions of home and my boyfriend. I needed to get back up to speed with manually calculating how much insulin I needed. The second was when my standby bottle of Lantus was about to expire, so I took another vacation and went back to MDI until I used up that vial. I'd just let your medical team know and then go back to MDI.