PERIOD

Hello guys, I have a question.

Last dec 5 is my last period during December.

I have a protected sex during Dec 20.

My app says Dec 24 is my ovulation and Dec 29 is the peak day of my ovulation.

I got my a redish brown spotting during Jan 11. (Its a whole day but not heavy) then JANUARY 12 I got my period. It is heavy. And have clot. It is cycle day 38 when I got my period. ( Take note I am irregular) . It takes 4days. That is normal for me to have 3-4days period.

Does it consider a spotting or a period??

Pls guys answer me