Could i be pregnant?

Gloria

Hello ladies! So for the past three months my period has been coming late by three to four days. I’ve always had a regular period. It comes as expected the day it’s supposed to. Last month my period was due on the 19th. I didn’t get it till 9 days later and it only stayed for two days which never happens my period is strict to its five to six day cycle. The past week i haven’t been able to eat much of anything without losing my appetite. And my lower abdomen feels a bit stiff. should i waste my time and take a pregnancy test or is it impossible that I️m pregnant?