Maybe a stupid question

🌸 Holly 🌸 • frm London, mummy to Mila born 17/06/15 💕 and Leon born 12/10/17 💙 xxxxxx
Everyday my period is late, I am editing it back a day, however this is just making my cycle longer and not really acknowledging I could be late? Does this change later on Down the line or? I just think it's saying one day til af blah blah blah but not that it was scheduled and hasn't come?
​Maybe a stupid question but can anyone shed some light or is that just how it is?
​Thanks! Xxx