Sorry to hear about the loss, Bert. I had the 1st anniversary of the passing of our second fur-baby just recently, and it still feels like yesterday (to me), that he went on to Rainbow Bridge to wait to eventually meet with the rest of us.
My thoughts are with you during this time, don't be at all taken up by feeling sad. Take as long as you need, I have a third fur-baby now, it eases the pain but I always remember the other two. They're gone, but never forgotten.