I leak precum every time (yes, every time!) I sleep and when I wake up, there's a wet circle on my pant. I'm sure, it's precum, not full blown ejaculation ("wet dream"). Because number 1 - I don't get any dream and number 2 - I usually wake up immediately after a wet dream and there's shitload of semen in my pant when this happens. But in this case, I wake up normally and I see my pant is wet when I check it.
What does that mean? I am very frustrated and confused.
This is perfectly natural.
It is nothing to worry about.
You, as do many men including myself, get an erection while you are sleeping.
Many nights, I wake up in the middle of the night and find that I am rock hard.
I can't fully explain why we get boners when sleeping. That doesn't matter; we just do.
Even an old man told me once he still woke up every morning with an erection.
(At his age, he was proud and happy about that.
)
Again, this is natural.
Simply, when you have an erection, your body produces pre-cum and that oozes out of your penis.
It is the same as if you were aroused with a girl and your body were getting ready for sex.
I get a boner nearly every night in my sleep, and I wake up with the same sticky spots in my underwear as you are finding.
That's how our bodies work, and there's nothing wrong with it.
This may be alarming you because it is something new.
If you had been masturbating regularly before now, your penis would have been too "tired" to get hard during sleep.
Your dick would have been worn out from fapping, and you would have blown all your juices in ejaculation.
Then, your body wasn't able to do anything during sleep. There was nothing left to happen.
I assume that because you are on NoFap that you are not jerking off as much.
That is why your body is now able to do these normal things during sleep.
Not looking at porn and not masturbating are allowing these things to happen.
Wet dreams should be seen in the same way.
They are the natural way your body regulates itself when you are not having sex or masturbating.
See those wet spots as good signs of your progress.
But you would be able to smell the urine in your pants. You should also be able to smell a difference in cum and precum. It sounds like the latter to me. I agree, if you were having constant wet dreams there would be more evidence. You are a horny teenager, it is nothing more than that I imagine. Hopefully it will calm down in time. 
