The notoriously private couple has yet to even confirm the birth of their first child, but a now-deleted tweet purported to come from a hospital source yesterday claimed the baby was a girl named Violet.
No word yet from the happy parents on whether that's true.
All that's known about Baby Lively-Reynolds so far is that she arrived earlier than expected at a hospital near the couple's home in New York.
No date of birth or weight have been revealed.
Blake and Ryan have always kept their relationship pretty low-key. They discreetly announced the pregnancy in October, simply posting a picture of Blake sporting a baby bump to her Preserve website.
The couple – who starred together in action movie Green Lantern - married in 2012.
Reveal is now on Google Plus! Join us here for the latest pictures, fashion and celebrity news!