...Though many media reports (click here) and other literature use the phrase ‘late-term abortion,’ it is not accurate and should not be used,” Hal Lawrence, M.D., executive vice president and CEO of ACOG, said in an email. “A full-term pregnancy is defined as a pregnancy with a gestational age between 39 weeks and 40 weeks, 6 days. ‘Late term’ refers to a pregnancy with a gestational age of 41 weeks to 41 weeks, 6 days. Abortions are not performed at ‘late term.’”
He added, "Because different methods of inducing abortion are effective at different stages of pregnancy, abortions are sometimes categorized by whether they occur in the first or second trimester. Clinicians sometimes use the term ‘early abortion’ to refer to abortions that occur up to 70 days gestational age, when medication abortion using mifepristone and misoprostol are highly effective. The term ‘later abortion’ is sometimes used to describe abortions that occur after 12 weeks gestational age. Describing these abortions as ‘late-term’ is simply inaccurate."...