The youngest preterm baby to survive was born at 21 weeks 4 days. "According to studies between 2003 and 2005, 20 to 35 percent of babies born at 24 weeks of gestation survive, while 50 to 70 percent of babies born at 25 weeks, and more than 90 percent born at 26 to 27 weeks, survive. The youngest preterm baby to survive was born at 21 weeks 4 days. Today I was asked at what point (if you are pro choice) do you make the termination of pregnancy illegal? I think that's a fair question. As science and technology advances and the viability of pre term babies gets younger does your opinion change? Everyone (me included) is quick to jump on the "my body my choice" bandwagon but at what point is it NOT just your body anymore? So, at what point is it to late to terminate pregnancy?