Fertility Therapy Improves With Repeat Tries, Study Finds

Women may need more than two cycles of fertility treatments to get pregnant and older women may need to use donor eggs to achieve success, a study found.

Women younger than 31 gave birth to a child 63 percent to 75 percent of the time with a third cycle of in vitro fertilization, while women ages 40 to 42 had a 19 percent to 28 percent success rate and those 43 and older had a 7 percent to 11 percent success rate, according to a study in the New England Journal of Medicine. When using donor eggs, the likelihood of delivering a child was 60 percent to 80 percent for all ages, the research showed.