Thanks for posting on HCM
It could be as a result of either pregnancy
or emergency pills. One of the main causes of missed period is pregnancy ( run a pregnancy test to rule that out). Amongst the other causes, emergency contraceptive
pills can lead to abnormal menstrual cycles such as intermenstrual bleeding
, polymenorrhea etc and even ectopic pregnancy. All can be as a result of side effect of levonorgestrel
and you taking two tablets does not favor the prognosis.
For now, just do a pregnancy test and you wait for say 1-2 weeks for menses to return. If they still not coming, then i suggest you pay a visit to a gynobs for review and treatment.
Hope this helps