Emergency contraception, Help!

So 6 days ago I was on my 11th day if my cycle, our condom broke, so I took a emergency contraception pill (or plan B or morning after pill). And since last night I've been having cramps and brown discharge. Is it spotting or am I getting my period? What does it mean? I'm confused, annoyed and worried please help😨😨😨😨😨😨😨