That title might be confusing. I took Plan B the day after having sex with my husband (won't go into details as to why, you can figure it out). I then got my period exactly when I should have about two weeks later. Yesterday it felt like I was getting my period, but it wasn't due for ~9 days so I ignored it. Woke up to blood this morning, it appears I got my period rather early. If anything, I usually get my period late, I have never gotten it early. In addition, maybe it'll start today, but I don't have the horrible cramps that usually come when my period starts. Again, it may be too early and those may begin later today, we'll see. I know Plan B can mess with your cycle. Is that all this is? If it doesn't last for the normal length, it seems like I should go see a doctor, right? I'm just a bit freaked out as I've never gotten it this early before. Advice appreciated.