If one of these criteria is missing, it is not a mortal sin.
If you are having problems discerning whether it is or isn't a mortal sin, get some counsel from your Confessor when you go to Confession.
Also, the sacraments bind us to God but God is not bound to the sacraments. For this reason, when I come across times where I am not properly disposed to receive Holy Communion, after I say my Spiritual Communion (below), I ask that He provide me with the needed graces for the coming week, that I would have received sacramentally, spiritually, until I can get to Confession.
O Lord Jesus, I believe that You are present in the Most Blessed Sacrament of the Altar.
I love you above all things, (optional: with all my mind, with all my heart, and with all my soul).
I love you because you are infinitely good and worthy of all my love.
Since I cannot receive You now sacramentally, at least come spiritually into my heart.
I embrace myself entirely to You and unite myself wholly to You.
Never permit me to be separated from You.
Come Lord Jesus and glorify Yourself through my weak, broken body.
I hope this helps,
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