Three weeks ago I was suppose to start my period and I donated blood. The first time he tested my blood to make I was able to donate....i wasn't and he insisted to test it again. So that should have been a sign because they were wobbling the needle while it was still in my arm! I'm not a fan of needles. I started crying, I donate because I know it can save someone's life. But now I'm 3 weeks late, 3 pregnancy down (all negative and taken in the morning). Could it have put a lot of stress on my body???