So I am feeling rather generous and was wanting to donate some blood. Here's the catch though, I am on a cycle and I would rather not have the vampires (blood drawing people) find out / know I am on a cycle. Should I wait until my cycle is over, or does it not really matter if I am on or not? I know they ask a series of questions (I don't know what they are as I have never given blood before) and I was wondering if when they analyze my blood if the gear will show up in the results? Thanks for the advice!