For me at least it was not until the second month that I noticed some early major gains (I didn't get a ruler until then as well so I had to rely on a paper envelope to keep track of gains). If you have been circumsized like I have, the first month is mostly about just getting the skin stretched a little so you can actually stretch your tunica. I believe in 20/20 hindsight that tight skin on the shaft is your early limitation to gains because it hurts when it gets stretched too much. Once you get some more shaft skin, actually stretching the tunica without feeling pain on your skin is a lot easier and stretching the tunica is how you actually make gains for that part of the penis.
Also, the first couple months are mostly a learning process. You should get some gains, but for me experience matters a lot when it comes to knowing how much stress you can safely put on the unit, how much to rest, signs of growth etc.
If you start getting a lot of loose skin around the shaft (assuming you grip properly so you don't just pull the skin during jelqing or stretching), then that is a great sign because it means you were stretching beyond your normal elastic erection capacity. Do that enough and you will get gains.
I have been doing this for almost a year now and my gains are logaritHydromaxically slower nowadays and I have to do more to get less (the life of a veteran), but if I notice extra skin or stretch marks then I get excited because I know gains are on the way.
I gained about 2 inches the first 6 months and the last 5 months I have put on an inch which gives me about a 3 inch gain in just under a year which is amazing for me since before I started Penis Enlargement I was only 5 BPenis EnlargementL and now I am 8 BPenis EnlargementL (it fluctuates between 7.75 BPenis EnlargementL and 8 BPenis EnlargementL). I can even sometimes bottom out my girlfriend which is a surreal experience if you ask me so needless to say Penis Enlargement has been good for me.
I have a +1 inch fat pad so I probably will keep Penis Enlargement'ing until I hit 9 BPenis EnlargementL which should give me about 8 NBP unless my fat pad miraculously disappears between now and then. Girth has been slow, but lately it has started finally coming around and I am almost up to 5.25 girth now which might be nothing to a lot of people here, but considering I was likely somewhere between 4.25 and 4.5 girth when I started Penis Enlargement, that is a huge difference to me.