Extremely light/short period??

So I’m super confused on what’s going on with my period right now on the 14th and 15th I spotted lightly when I wiped then the 16th (yesterday) I had one day of a period I guess?? My period normally lasts 6-7 days I used one tampon (regular size) for the entire day and seen when I took it out I still didn’t fill the whole thing I don’t have any type of period symtoms at all like if I didn’t bleed yesterday I wouldn’t have even thought I was on my period (I normally get sore breast and cramps and I get moody) also my periods are normally heavy! I have attached a photo for reference of the dates I’m just confused 😕 I’ve never had this happen any idea what’s going on? I 1000% don’t feel like I was on my period?