Period late!

Elise

Between my glow app said my period due today and my period calendar App been right on spot now says I’m 4 days late when my periods come and I haven’t got my period yet. I picked up pink dye test this morning, should I take it this evening or in morning?

History: came off depo November 2017 after 10 years started regular periods 3 months ago this be my 4th should of came.