This December the #FDA updated the label on Plan B/morning-after pill to make it clear it doesn't prevent a fertilized egg from implanting. https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/plan-b-one-step-15-mg-levonorgestrel-information
NYT's Pam Belluck wrote a story TEN years ago (!) about how scientific evidence didn't support the label language that had led to abortion qualms
https://www.nytimes.com/2012/06/06/health/research/morning-after-pills-dont-block-implantation-science-suggests.html
Remarkable how long it took for the label to catch up to the evidence.


