Why Is Abortion Delayed Despite Taking Three Dosages Of Misoprostol Vaginally?

Hii im 9 weeks preg and on the 16 i inserted 4 pills misoprostol vaginally (800mg ) at night then on the morning i judt had really bad cramps but just mucus with blood then i did the same dose again 24 hrs later and i just bleed when i go pee the pad it just always has like a brown red line of blood then i did the same dose 24 hrs later again this is the third dose and still nothing just brown red blood.. Idont know if i should do another dose but orally now....:/ and i scheduled an appt in a abortion clinic in san antonio tx but idont know if a should go because what if i do another dose orally and maybe with that it might help ?????