Should I ?!

Im usually a 28 day cycle but the past few months (since July) my cycles have been either early or late. This is my month so far, the Saturday he finished and I instantly felt off, I ignored it but then the next morning i continued with nausea. I have 2 kids and with my first I found out the day I missed my period but had suspicions & my second I found out a week before my missed period. I feel like your body know, I want to test so bad but not sure if it’ll be too early what do you guys think?😬🤧