Laura's sister and her brother-in-law husband welcomed a son before 9am on May 20, as the reality TV star announced the happy news via Instagram on Tuesday.
"On Sunday my beautiful sister and her husband brought baby Archer into the world," Laura began her announcement.
"Being there for the birth of my nephew and holding your hand @lelubeewas one of the most incredible experiences of my life, you are hands down amazing in every way."
While Matty J and Laura have spoken about wanting to eventually have a family together in future, his recent Instagram post proves he's happy to play the uncle role at this stage.
Maybe, but we're pretty sure The Bachelor couple will have some good looking cherubs!