i injected a couple of days ago and realized when i pull the needle out blood came out of the spot, but there was no blood in the syringe or the needle, it just came out from the spot. is that ok? i aspirated and saw bubbles and when i leg go of the plunger, it just sucked right back in, so i thought it was safe to inject and so i did. but im here breathing, im fine, but did i nick a vein or something?