Regular period delay or Pregnant?

Alexandra

Every month for the past years I have used the prediction apps for my period and I always got it as the app predicted it. This month some of my PMS symptoms missing. I only have breast pain, headache 🤕 and tired 😴. I am in the middle of my predicted period but it is no show. Can the regular periods be late or am I finally got lucky 🍀 and got pregnant? Did anyone of you experienced delay with the regular period?