Period suddenly stopped

I got my period on Sunday morning and it usually last 3-4 days. My boyfriend and I had sex Sunday, Monday and by Tuesday morning it stopped. This is a lot shorter than usual. My period is also normally really light but it was lighter than usual too. We have had sex during my period before and I was still regular. What could this mean?

u might be pregnat

Sucker. J/K don't get mad at me. Did you use protection? wait a week or two and test yourself.