Delaying period??

Kayy 💗

Okay so I’m on the 28 day cycle pill. We’re having a school formal next weekend and I’m supposed to start my period that day. Is it safe to extend my cycle by taking another one of the normal pills from the next pack before my placebo pills to prevent my period from starting. So basically I’d be making this month a 29 day cycle and next month only 27. Is this okay to do? I’m probably going to talk to my OBGYN about it but I’m seeking any advice or experience :) thank you