So I’ve had my period for a long time and it’s never done this

Recently me and my boyfriend had an accident and used plan B

And I just got my period two days ago and the plan B did say it would make my period come sooner or later.

But my period is really brown with blood clots and it smells bad. Anyone have an idea of what it could be?

I’ve also recently had itchiness and bad smelling urine that’s cloudy, I think it’s a UTI

Please help