Hi MW1
You should do whatever seems right for both of you.
However, as this is a trial separation, my gut feeling is to take everything that you might
need and just put away the things that you won't need.
If you move out and take your things, then you won't have any of his things around you, but for him, if he stays there, and you leave your things, then they will always be around him. It seems fairer that he doesn't have to deal with this to a great degree.
On the other hand, if you just take
everything with you, then that might seem a bit too final for a 'trial'.
But you will need to talk this over together and make your decision based on what feels right for you.
