15 dpo and bfn 😑

Kate • ttc 2 yrs Baby girl born July 22nd 2019😍 Baby boy due July 10th 2023

Im now 3 days late, my period usually comes like clockwork every month as glow predicts it to. I have had on and off period like cramping, but absolutely no blood, just white cm. I dont do bbt or opks, so im hoping I O’d late? It was a blue dye dollar store cheapie. My DW thinks should wait a whole week to test again😭 been ttc 13 months, should i use my clearblue digi with fmu or should i wait?