ok i did my 1st shot in the thigh 2day, i usually do it in the glute but since im doing 2 a weeks i have to rotate, heres the issue, i shot .5ml of test and 1.5 ml of eq and i put the needle in i pulled back and nothing but air bubble so i thought i was cool, but when i pulled the needle out after injection there was a little blood in the syringe, it was jus a little trace not a whole lot like i drew blood but a small trace, is this normal bc ive never had this happpen in my glutes be4, if it is cool i jus wanna make sure i didnt inject into a vein,, any advice or help will be appreciated