Just one man's opinion. Stuff is just stuff. And can be replaced. I am not a huge fan of storing things, so just take this with a grain of salt. But I would be inclined to donate them. And then if and when you are ready to have another you can have the fun and joy that goes with the shopping for the new baby!
In short, getting rid of the baby items now doesn't mean you won't/can't have another baby (or babies).
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018