how to overcome by uneven menstrual cycle after taking plan B? when i had plan b for the first time as i had unprotected intercourse, then i got menstrual within thatfirst week , n second menstraul cycle had after complete 28 days ,but now still i didnt hav menstrual as usual regular time even after 6 weeks, thus I m so wooried n aslo simultaneously get lots of achne on my face and upper back as well. so what are the remedies for that ,kindly request to you if any suggestion to regulate cycle and how to overcome by achne and my age is 31.