just done my injection before n done all the steps. pulled bak on the plunger, no blood so injected. wen i pulled the needle out, as soon as it left my shoulder blood was squirting out of it. i swear it was like a horror movie.must of squirted bout 10 inches far n after bout 3 seconds it just dribbled a lot down my arm.put pressure on it with swab until it stopped.ive never had anythin like this in all the times ive injected. there was a tiny bit of blood in the syringe wen i finished but nothin came in wen i pulled bak before i injected