I would stay with what you're doing. "Those" calculators are only "guesstimates" and are often inaccurate. You and you alone are the only one that can figure out what will provide a loss for you. You do that through careful monitoring of your calories and trial and error.
Were you satisfied with those amount of calories? You had plenty to eat? Nutritious, healthy foods? You weren't hungry? You felt good? AND you had a 2 lb loss? Hopefully, you said yes to all of those questions. If so, yeah, I'd stick with that. You always have time to re-assess down the road.
Do keep in mind though, even if you were to duplicate the same exact
type week 3 weeks in a row, you may get 3 different results. That's perfectly normal and okay. Weight loss is not linear and that is to be expected.
Keep up the great work! Just keep at it and you will for sure keep on losing.