Ok, so i got another pack of needles last night 23g, 1 1/4 inch and i tried pinning one side of the glute and when i aspirated it drew blood, so i took it out changed it to a fresh needle (so it wasn't blunt and wouldn't have any blood in it) swapped sides and it drew blood again. It also bled like mad when i pulled the needle out, I didn't inject any oil.

The only reason i got 23g needles is because they were out of 21g needles which i have been using for the first 3 weeks of the cycle, They only let you take one pack at a time and give you another pack when you return the sharps bin.

My question is... Was i just unlucky and hit a vein twice or is the needle size making it bleed? Ive never hit a vein before and this would be my 6th injection.