<s>[INST] Hi doctor I am not pregnant  but  from two  month I did not  get period,but I have meet my husband and  I  consult  doctors  I took tablet.mifegest 20th on 20 /11/2015 and after two days of taking tablet again I meet my husband  so again I have to take  another dose plus help [/INST] Hi dear, I have read your query & understood your concern, - The Chat Doctor.  Mightiest is usually given after confirming pregnancy. It does not prevent pregnancy, but it extinguishes already existing pregnancy Needs .to be followed by another medicine to expel the dead fetus.  - So repeating Mightiest dose after next sex will not prevent conception.  - For such unexpected unprotected sex, you should use barrier contraception /emergency contraceptives Instead of using  </s>