I donated blood during Junior year of high school (I'm being specific in case I read this when I'm a lot older and don't understand). I got a call a few weeks ago (it's 7.14.11) from the blood donation place saying Thank You and that they would really like me to come back. I said that I would ask my mom when she came home. The call was about to end when I remembered that I don't even know my blood type. I asked the lady calling me if she knew.