If you’re pregnant and you’ve previously had a cesarean section, you may have a decision to make: Do you try for a vaginal birth after cesarean (otherwise known as a V.B.A.C.) or schedule another cesarean? Deciding whether or not to try for a V.B.A.C. means reckoning with the details of your medical situation in the context of your values, according to the experts. “I think it’s important to know that V.B.A.C. is an option for most women, and their chances of success are actually quite high,” said Dr. Jeanne-Marie Guise, M.D. M.P.H., professor of obstetrics and gynecology at Oregon Health & Science University School of Medicine.