"First day feels," he captioned the photos on Twitter.
But this is when things got awkward.
He later found out that the flowers weren't for him at all. They were meant for someone going on maternity leave and they had mistakenly been placed on his desk.
What is even worse is none of his colleagues had the heart to tell him after they saw him proudly posing for a photo shoot with the flowers.
"I found out these flowers were misplaced on my desk and supposed to be for someone going on maternity leave because they don't give flowers to new hires, but they saw me taking pics with them and felt too bad to take them away," he wrote on Twitter.
And it seems like they aren't going to let him forget his cringe-worthy mistake anytime soon, with one of his pregnant collages later giving him another bunch of flowers.