Please comment

Renae • Mon, Jun 20 • 23 mother of Baby D ,

I have another <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period app</a> on my phone it says my period was suppose come on June 13 .. No period . Glow says my period was suppose to come June 18 no period still . But the other app on my phone I set the cycle length to 23 & Glow cycle length is 28. Should I test ?