Help! My cockatiel is hurt!!?

I just got a new hand fed baby cockatiel (he's about 5-6 months) not even two weeks ago. He lives in his own cage, and there's nothing pokey in it or anything. But he's still getting used to me, so when I go to pick him up he freaks out and goes all over the cage, but once I get him on my finger he's fine. So today I went to pick him up and he started freaking out, flying all over his cage, and when I finally got him he was still a little freaked out but started to calm down, and I saw blood on my arm (just two little marks). Then I saw it came from under his wing (towards the front if the wing, and on the edge kind of). It bled just a tiny bit and I think it's stopped now. And he acts fine, he's eaten a bit and doesn't act like he's in pain.

So I don't think it's a broken blood feather because he's lost in total maybe a couple drops of blood. What else could it be though? Can it be a broken blood feather if it bled that little and already stopped? Should I be worried??