I'm 22 Years Old And I Have 3 Weeks Pregnancy.

I'm 22 years old and i have 3 weeks pregnancy. I take 4 pills of cytopan to cause an abortion, of 200 micrograms (in total 800 mcg) at one time. And someone told me take more 4 tablets again after 3 hours and then again after 3 hours (Total 12 tablets in 9 hours). But i start bleeding after the first dose of 4 tablets.
My question is should i take more 4 tablets after 3 hours or not?