There is a 99.9999999999% chance OP didn’t lose length through a simple jelqing routine. I’d constantly be double-checking my dick day after day thinking that I lost length when I started as well. I still do. It all comes down to your EQ. Either that or you did not place the ruler the same way you did when you recorded your initial measurements. I’m going with EQ though. Don’t worry about it. You didn’t make your penis smaller. That’s nearly impossible.
If he is measuring NBPEL, and gained any weight, the pubic fat pad will have increased making it look like his junk has shrunk.
Kdong Starting: 7.1 x 5.125 vol = 14.84 cu. in. Current: 7.1BPEL 5.5 MSEG = 17cu. in. GOAL --> 8.5 x 6.5 vol: 28.6 cu. in.