I think I know what I did wrong, but I would like to double check with veterans. I did my third injection ever today. After I pulled the needle out, I had a little more blood than I did my first two injections. I aspirated the syringe, no blood just some air bubbles. Instead of keeping the needle in for 30-60 seconds like I did the first two times, I took it out almost instantly which is where I think I screwed up. There is no bruising or unusual soreness, so I think I took the needle out too quickly. Sound about right?