Bro,
If you are getting a bloody liquid seeping out after the injection this is not unusual and can be avoided by pulling your skin over to one side with your thumb and then injecting where the skin is tight. When you release the skin it will go back to its natural place and cover the injection sight due to the skins natural elasticity. This is called Z-tracking and it works at any inj site.
When you put the pin in you must draw back first!!! If you see blood DONT INJECT, you could be in a major vein or artery (the main femural artery runs through the leg). Always divide your thigh in three equal parts from hip to knee and go in the outer middle section.
Best advice. Change inj sites often. Stick it in your butt, shoulder or other thigh. But always draw back first...any blood there then just draw out dont inj.
bigasmatt