Hi I had unprotected sex on the Oct 31, and Nov 1 I got Plan B The night of the 1st... My cycle is 28 days and fairly consistent. I started this cycle Oct. 19th. I was expected to ovulate on the 2nd/3rd. And get my next period the 16th.

This past Monday morning, (the 9th) I woke up noticing I was bleeding. It was bright red, and I had cramps along with it. It lasted for about an hour as a normal "light period". And for the next 4 hours got lighter and lighter and became pink. Then disappeared compltely. I woke up Tuesday morning and noticed a light brown/pink discharge that has lasted well into what is now Wednesday night and hasn't stopped since. I'm worried this is possibly implantation bleeding. Or could it possibly be side affects from Plan B?