All Can Still End Well After Plan B Failure

When used within 5 days of unprotected intercourse, levonorgestrel emergency contraception (EC) pills markedly lower a woman's chance of becoming pregnant. However, pregnancies occasionally occur despite use of EC. To assess the development of 195 offspring born after failure of levonorgestrel EC, Chinese researchers measured the children's weight, height, head circumference, and intelligence at age 3 months, 6 months, 12 months, and 24 months using standardized tests, and compared them to 214 children born with no histories of exposure to levonorgestrel or any teratogenic substances.

No significant between-group differences in mental or physical development were apparent for children who were or were not exposed in utero to levonorgestrel E…