It’s really a boys’ house now!
Born at 7:08 p.m., Rhett Jameson Chatham weighed in at 7 lbs., 13 oz. and measured 20½ inches long. He joins 18-month-old big brother John Nash at home.
After a bit of delivery drama the first time around — “Unfortunately, Wes was on an airplane when Nash was born,” Brown told PEOPLE following her son’s arrival five weeks early in 2014 — baby No. 2 made it the full 40 weeks.
“We are so glad that Wes was able to witness the birth of our newborn son this time!” Brown tells PEOPLE of her husband, who is currently filming The Expanse in Toronto. “We were worried that he may miss it like he did with Nash due to filming again, but he made it home last night, just in time.”