It's important to go see an Ob/Gyn to do a PAP smear to check for cervical cancer, and a pelvic exam to see if the blood is coming from the uterus. Spotting during workouts sounds more vaginal. I'd go see your OB/Gyn right away.
Its me lost__world
I just wanted to point out that im 21 years old, no kids, and have not had any sexual intercourse. I have hold that off and only tease and play around.