HELP PLEEEEASE!!!!!

Nina • A mom, wife, servant of God, praying for another miracle 💕
If I missed my period this month altogether (which I'm so depressed about) as this has never nappened .. And I know for sure that I'm NOT pregnant. HOW do I adjust glow to give me better accuracy based on skipped period and accordingly to glow tomorrow is my highest fertility day except ovulation test are all that big fat O vs the smiley :( 
Someone please help.. 
Also has anyone else gone through this?? I lost a baby on Easter but got my period following month and this month .. NOTHING! I'm a mess emotionally. I want a baby so bad...