Anyone who had prostate surgery experience penis length shortening?

I am scheduled for prostate removal on August 28th. I have heard that some men lose length in their penis due to the reattachment of the bladder and urethra which pulls the penis into where the prostate use to be. I have heard over time the bladder will drop into that space and you regain your length. I was hoping anyone who has experienced this could share their story. I also bought a pump hoping that post surgery that might help as well.