I'm the original poster of this thread and I just wanted to give you an update - just in case someone in a similar situation stumbles upon this thread. I still haven't gotten my period but I did take a pregnancy test today that came out negative. I have an appointment with a gynecologist in a month so hopefully I do get a period before then. Since I have such long cycles there's no telling when I'll end up getting my period. However the 8 dollar test was definitely worth the peace of mind! I've heard of people that have gone two or three months without a period after Plan B and needed a gynecologist to help sort out their hormones and such. I'm hoping that they can sort me out if I haven't had a period in another month.