Be more specific when you ask your questions. First of all where are you injecting?
The usual pin sizes for me are:
23ga x 1" for quads
23ga x 1.5" for glutes
25ga x 5/8 for bi's, tri's, chest ect.
You should be fine. Use what you have while you wait for longer ones. Concentrate on quads and delts. When you do glute shots do like Riker said. Push it in deep.