Will I gain fat?

so for 5 days I've been clean eating on a meal plan that my nutritionist assigned me to lose weight (fat loss) and today i felt like having a cheat day but not overboard. I just had a lot more carbs than im assigned to (i ate like 6 pancakes) and increased on my sugar intake ( desert,2 cookies and leftover pancakes). what im wondering is if i'll gain any fat. i didn't go all out on my cheat day just said yes to some foods i usually say no to.
Will I gain fat?
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