A little under a week after I stopped my period, I had unprotected sexual intercourse. Not wanting to get pregnant I took the Plan B pill. A week after I took the pill (yesterday) I noticed spotting and today it is full blown bleeding. Is it my period or something else? If it is, that would make my period three weeks early (my periods go on a month and a week schedule, rather than just a month). I might also note that after I took the pill, the day after, I had odd reactions: skin irritation/rash, weird thoughts, nightmares, headaches, dizziness, some abdonminal discomfort, and a very bad mood (pms kind of bad mood). If anyone has any information that would be helpful. I contacted the hospital last night and they told me to wait a while but I am very dissatisfied with the answers I got from them.