Just to double check you stretch right? That’s where your main gains come from at first (or your “newbie gains”). Make sure you stretch because those tendons are much more willing to co-operate than the rest of your cock. But don’t pull too hard because you can damage ligs as well. Although you have to pull pretty hard.
I wet jelq and am not circumsized either and I didn’t get gains for a month and a half, and then surprise, I grew .25 in the next month and a half. Conditioning plays a role too.
A tip with stretching with a foreskin. Pull it all the way back.. like more than you think you should and grip on your actual cock rather than the skin or foreskin. Sort of obvious in hind sight but at first I was a little confused