Hello dear Understand your concern Yes you can use mt pill as your are 19 days pregnant. But USG is required before the use to know weather pregnancy is in uterine cavity or ectopic because it is use only for ectopic pregnancy. It should be used under observation of gynecologist as it causes serious complication like excessive bleeding, cramps, infection, incomplete abortion, abnormal development of fetus in failure. As gynecologist consultancy is confidential, your identity will keep secret. Mifepristone should be followed by misoprostol vaginally by gynecologist after 24-48 hour. Follow up required at 7th day. At 14th day USG should be done for confirmation of retain products. As you are weak you required healthy diet with iron supplements and heamatinics for balancing blood loss occurs during abortion. Hope this may help you Best regards Dr. Sagar