Selling multiple categories on a Store

In order to get a Store I have to be brand registered.
To do that I need a trademark.
So I have a question:
If I get a trademark in the class, say, baby toys, and I set up the store with a line of products in that niche.
If I suddenly decide to add other products that are not covered in that class, baby toys, but maybe in apperal or baby furniture, can I also put that in my store?

In other words: do the products in a store all have to align with the class in which the trademark was trademarked originally?