Is this my period?

My cycle is roughly every 34days,
Always lasts 5days,
This month i started bleeding on day 30, 
It was mostly brown blood (tmi sorry!)
But it only lasted 2 days, then brown spotting on the 3rd day.
Could this be just a bit of a weird period? Should I worry?
This has never happened before.
I would really appreciate any help, advice as I'm going out of my mind at the moment 😔
Thank you