Last night when I was masturbating,I think I ejaculated for the first time. But im not sure. When I got to the point where I couldn't hold "it" in any longer,like 1 or 2 small squirts of clear goo came out of my penis. But I've been noticing it for like 1 week. But the first day it was only like a drop and then everyday after that up untill now,more and more comes out. I just want to know is it cum?

btw im a 13 year old boy.