So 6 days ago I took the morning/day after pill for the first time. My fertile window ended today so I'm not due for my period for another week but I have been having discomfort sort of like period pains the past few days and Today it became really bad. I have just started bleeding but it's not like my usual period (especially the start of my period) it's quite watery. I put on a pad and within 10 minutes there was a decent amount but it looks partially watery but kinda old. Any idea as to why this is happening?!?!