I just finished my injection. After inserting the stringe I did my aspiration. Some blood droplets came into through the syringe and I noticed it in the clear part of the tip. I removed the syringe, removed the needle tip. I then put in a new one and started all over again with success. This is the first time I got blood from aspiration. If the blood gets into the syringe and mixes with the compound is the compound no good? Does it need to be disgarded?