I'm cramping badly that comes and goes. and i'm bleeding on and off. and the blood is dark red and kinda pink. should i be concerned about this? and what should i do?

Depends: Is this happening around your period or in the interperiod interval. If latter, you should consult a gynecologist for an evaluation. Take oral iron and multivitamins to prevent anemia from blood loss. Visit this site for info and talk to your doctor: http://www.nichd.nih.gov/health/topics/menstruation/conditioninfo/Pages/causes.aspx Wish you good health!