Not sure if my period is late 🤷‍♀️

Sophie

So over the last 7-8 months my period has gone from 28 day cycle to anything in between 23-26 day cycle. My last period was on day 26 and today I’m on day 27 of current cycle. Have I technically missed my period by a day or do I still go by 28 days 🤷‍♀️ you’d think being a grown woman I’d know the answer to this lol! (Btw I have NEVER been late)