First of all, you should undergo one home pregnancy
test with urine to confirm or exclude pregnancy. Repeat test may be needed. There are several other reasons of late period besides pregnancy.
Without confirmation of pregnancy, it is not recommended to take any type of abortion
pills which may cause serious adverse effect.
Following test report, you need to consult with doctor for next line management. Abortion pill should be taken under supervision of doctor to avoid unnecessary excessive vaginal bleeding
which you can't control yourself at home.
In case of negative test, progesterone
pill can help to induce period. Practice safe sex
in future to avoid unwanted pregnancy.