Making sure that their family's newest addition remains it proper health, Ben Affleck and Jennifer Garner were spotted out for a medical clinis visit in Brentwood, CA on Monday (March 12).
The "Butter" actress and her "Good Will Hunting" hubby headed upstairs to the physician's office with daughter Seraphina while a family nanny toted baby Samuel inside separately.
Talking about Ben's joy over welcoming his first son into the world (he's already the father of two darling daughters), a source told People magazine, "He couldn't be happier. He loves his wife. He loves his family and he's proud - he's legitimately proud - you can just see it."
The insider added, "He's gets to spend a lot of time with his family and the idea that they have three kids right now is something that makes them both feel really good."
As for Miss Garner, the source dished, "Jen is feeling good. She is such a natural mother. She's so thrilled to have a little boy, and the girls already love him so much."