Hello, Marissa. I'm not a medical professional, just the parent of a kid with diabetes. There are about as many techniques on how to dose from a pen as there are people who do it. The simplest way to figure out if you are getting the insulin is by checking your blood sugar to make sure that it is at the level you'd expect. My daughter doesn't use the pen, but I've talked to a lot of people who do. One of the things they say is to make sure that you leave the pen in the skin for a few seconds after you dose. That helps make sure that everything gets out and no insulin will leak out. Now, depending on how you do the dose, it may leave insulin in the tip of the needle, as it depends on how much of the liquid is absorbed during the dose. Hope this helps!
If you don't know whether or not the insulin was coming out correctly then you could watch the plunger that pushes out the insulin to verify that it at least went down, this may help a little.
Rob
Thanks Rob, that's a good idea and actually that's what I meant when I said I heard the clicking meaning that I could see the plunger going down, so I guess it's probably okay..but it still made me nervous.