I would say try again.
When I topped my ex for the first time I barely felt anything (condom of course) until I noticed the problem was my foreskin.
Imagine holding your dick in your hand. Before penetration pull the foreskin up a bit so its covering you dick more and then go in. For some reason if I were to penetrate with my foreskin normally as it is I don't feel anything inside... Guessing it has to do with more foreskin available when you're fucking (if that makes any sense).
Afterwards sensation was never a problem... it turned out to be fucking orgasmic
. There were a few times where I even stopped to make sure the condom wasn't ripped because it felt like bareback
. Being uncut is great, just keep on trying.