hi ok your find its a hormone thing and its brought your period on early sorry but that's about it. its what these pills do to you. good luck
can levonorgestrel (i-pill/plan b) cause periods to be one week early. my periods started on 29th jan 15 ended on 3rd feb 15. on 4th morning around 7. 30 am was fooling with my bf when he inserted in me max for 5 mins. he pulled out but i was scared of precum. he never ejaculated inside on 5th feb i took levonorgestrel (i-pill / plan b) 38hrs later. my next period was due on 21 feb as i have 24 days cycle. but my periods started today 13th feb. one week early. so are there any chances of pregnancy