One could guess.
The actor and the supermodel didn't exactly run right out and shout their happy news from the rooftops, nor did they talk about their blessed event at all, for over a year.
As daughter Lea de Seine Shayk Cooper's first birthday approached last March, Shayk's Instagram account remained boyfriend-and-baby-free and Cooper had been almost entirely MIA since the May 2017 release of Guardians of the Galaxy 2. Of
course, now that he's been ubiquitous since last summer, we know that Cooper was actually busy toiling away in the mental and emotional creative bunker that was the making of A Star Is Born.