Hi, this happens when u take ipill, so don't worry its normal reaction n u r not
pregnant. One word of wise would be don't take I pill whenever u have unsafe sex, as it disturbed ur hormone's n creates problem, so option is to use protection or wait till next menses as 100% time u don't get pregnant thus avoiding ipill would be possible n if u do then u have option of mtp pills which will help u out if u don't want to continues the pregnancy. Pls try to understand if possible.