Dynamic Date ranges in pivot tables

Hi!

I'm creating a tracker for some new products we're launching. As they're launching at different times, some of the products will have sales of zero in the weeks before launch.

Is there a way of getting excel pivot tables to not display the weeks with zero sales?

For example, Product A launches on the 1st Jan, and Product B launches on 1st Feb. When I select Product B from the drop down at the top, is there a way to get it to start the dates at the 1st February and not display the zeros that will be in for January?

Many thanks!