hey mamas! quick question...so last month my period was like a week late...but when it did come it…

hey mamas! quick question...so last month my period was like a week late...but when it did come it was SUPER light compared to my normal and really short.. this month I was supposed to start on the 13th and didnt...is it possible I was pregnant last month and just had a period any ways...I'm going to get a test today but I was just curious on others thoughts and oppinions! TIA