[FishPhish]

On the 4th of November, I had unprotected sex with my partner. Because it was on a Friday, I didn't have access to the morning after pill until Monday morning, which was cutting kind of close. I experienced nausea and cramping, normal side effects within the first 2 hours of taking the pill. Then, on the 20th I had on and off cramping with some spotting. The spotting was brown. It continued like this for about almost 3 days until I got a moderate/heavy period that included fresh and brown discharge. It was a lot less intense than how it usually is (I have dysmenorrhea). Oddly, the pain I got from the spotting got worse when I walked anywhere or ate something, also true when It got heavier. Is this normal? Should I be concerned?

[DoulaLC]

It is likely from the morning after pill which can disrupt your normal cycle due to the higher concentration of hormones. See what happens when you would expect your period for December.

[Fr_Chuck]

The morning after pill is of course not 100 percent effective even when taken on time. It is not a matter of making it on time, it is a issue that the longer you wait, the less effective it is.

It will alter your period for one or two months but if you have concern, a trip to your doctor is never a wrong thing.
Most likely it should be getting cleared up by next period.