Hi,
The fact that you have taken emergency
contraceptive pills thrice in one cycle speaks for itself. These pills contain high dose of hormone and hence disrupt the
hormonal milieu of the body. Even with a single dose, you may have withdrawal bleeding, delayed cycles etc. In the current scenario, you need to see a specialist, get a
blood test for
pregnancy along with a trans-vaginal sonogram to assess the status of the pelvic organs. If everything is fine, you could be given hormones to induce a period. Hope this helps.