Weird bbt chart and no sign of AF

Sophie

I posted this chart yesterday because I found it a little odd that I had such a rise in my bbt the day before my period. I usually experience sore boobs around 5 to 6 days before my period date but nothing this month (No symptoms what so ever) I had some period pains (Cramping) about 3 or 4 days ago but no period so just carried on as normal. I forgot to do my bbt this morning as had to rush straight out the door but at the moment there is no sign of my period although I have pcos it’s very rare for me to be late for my period. Can anybody shed some light on any of this? Any ideas I will be very grateful 😊 xx