Some people in the U.S. choose to self-manage their abortions by ordering the abortion pill through non FDA-approved websites. Plan C, an organization established to provide women more information about medication abortion, has developed a "report card" guide showing how authentic these unregulated sites are. It includes detailed information on quality of product, price, and shipping time.
If you've been prescribed the abortion pill by a doctor (either in person or via telemedicine), you're in the clear. However, according to Plan C, if you purchase the pill on your own (without a prescription or without the supervision of a healthcare professional) the legal risk is unclear. Check out their guide "Can I get in trouble?" here.