Light pink discharge, smelly vagina, cramps what does this mean?

Possib. vag infectio: Possibilities include a vaginal infection, possibly due to stis (like gonorrhea or chlamydia or trichomonas). Odor suggests bacterial infection. See your doctor, and if you have been sexually active, ask for std testing, just to be safe and sure. Cramps could suggest uterine infection that may require treatment with antibiotics. See your doctor to be sure.