Crown Work During Invisalign Okay?

I would like to replace three crowns in my upper teeth and the process will probably take about three to four weeks. The temporary and permanent crowns will affect the fit of the trays and ordering new trays probably will take a minimum of a couple of weeks. How can I get crown dental work done without jeopardizing my Invisalign progress? I will have to deal with a few weeks of not having a tray that fits for the temp crowns or the permanent crowns. Please advise.