Period Day Late

Ma

Alright , my period is only a day late so I’m not nervous it anything but am a bit confused & just want to know ... how come this time I didn’t feel any PMS symptoms ; usually it’s a week before then like 2 days before . - but this time nothing at all , especially my number 1: sore nipples. I haven’t experienced ANYTHING... nausea or nothing ! Any know what’s going on ?