I haven’t started my period all this month, why could this be?

I’ve been experiencing symptoms, i’ve never had sex and i don’t take birth control. However, my periods are very irregular. I just need an explanation on why my period has not started, this has never happened to me before. I’m confused asf.

EDIT: I’ve started my period now, i guess it was just my periods being irregular as usual but thank you for taking your time to comment!