Period late on pill

Olivia

I’m on the combined pill and I stop taking it for my period on Wednesday. My period usually comes on Sunday, meaning it’s 1 day late.

I’ve had sex and have not let my boyfriend finish inside me at all throughout the month.

I have all the period symptoms - cramps, sore boobs etc but no period.

Is this normal? I’ve been on the pill for a year and this has never happened.