Your lesson for the day: bruising or soreness is NOT a prerequisite for a positive/good PE workout. In fact, most veterans will tell you that you’re jelqing too hard if you experience bruising. A general albeit minor case of soreness is not out of the possibility, but don’t get into the mindset of thinking you NEED to feel it.
A good test to see if your jelqing is effective: watch the head of your dick. If you see it balooning up/expanding, you’re pushing blood sufficiently. To further test it, try placing your fingers around the end of your shaft just below the glans. Now do a jelq stroke with the other hand. You should feel the shaft expanding with the hand that you placed at the end of the shaft.