Probably venial, but ask a priest. Don’t rely on anonymous people online.
Of course, though someone who won't have a chance to go to Confession for a while might have to make a judgment call, which is probably why he's asking here. It's always the "probably" stuff that really gets to scrupulous people, and scrupulosity almost by definition relates to being unable to make a judgment with absolute certainty regarding the matter, which is unattainable for the scrupulous individual, and thus their churn. There's a good chance the priest would just be guessing also, and one priest might guess differently than another, etc.