period came early

So I had sex on the 10th of December and my period came on the 16th and it seemed completely normal but I was due to start it on the 21st. Could this mean anything? Or does sex just make periods start quicker? 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors