missed 4 pills during last week. My period is 4 days early. Normal?

I have been on Trivora for 4 years now, and my periods have been normal. I also have unprotected sex, and have had no pregnancy scares.

I have not taken the last 4 days of pills, and got my period today. I wasnt supposed to get my period for another four days. Is it early due to the missed pills?