SO CONFUSED AND FRUSTRATED!!

Amanda • Mother of three two girls n one boy ages 10,5 and 3 1/2
So I seriously think my period is irregular I've been off depo shot for 4 months was on it total of 9yrs..got pregnant twice after missing it...finally getting my period but i don't think the right way..glow says I was suppose to start my period March 23 well it's been 4 days and still had not showed yet..thinking MAYBE I'll test this coming Friday but afraid to see a bfn :(