Spotting advice

So I’m 5 weeks, 5 days. 2 days ago I went on a long haul flight (15 hours of travel). A few hours later I had light brown discharge when I whipped. My CM was also brown when I checked.

Yesterday everything seemed relatively normal.

This morning when I peed I wiped and had a tiny red blood clot on the toilet paper. Like really small like 1/4 inch or smaller.

Should I be concerned? Could the travel and extra stress on my body have caused this? I never had implantation bleeding so this is the first sign of blood I’ve seen.