Oliver Julian "Ollie" Patrick is the son of MatPat and Stephanie. Near the end of the March 13, 2018 live stream, it was revealed that the baby was due to be born on July 4, 2018, however, he was born five days later (first-born children are known for being born late).
Stephanie's pregnancy was revealed on March 12, 2018 around six months after BabyPat's conception. The Most IMPORTANT Video I've Ever Made (NOT CLICKBAIT).
On the 29th of April, Matthew and Stephanie asked the community which color they should paint the children's room and on the 30th of April, MatPat confirmed that he would have a cameo in the music video for Despacito 2.0.(Apologies, but somebody had to make this meme.)
On the 10th of July Matthew posted a picture on twitter stating the delivery went well, however this does not mean that his child was born on that date.
On the 13th of July, Matthew held a livestream and he stated that Oliver was 4 days old, and he shared his birthday with rapper Cardi B’s child, who was born on July 9th.