Ok guys I tried to inject 3 dif times and each time i aspirated i had a little blood ball come into my syringes. u used 3 dif syringes for this one injections. the needle was 1 1/2 inches 23 gauge. do u think its just a blood cell?? because i pulled back pretty hard on the syringe and i know that i was in muscle when these problems occured. Thanks guys