Caster and her partner lead a private life, and when it comes to the news surrounding their growing family they have done just that.
When they announced that they were expecting their first child together, the couples simply posted images of small shoes and baby rompers. But now they are seemingly letting us more in on their journey.
Another athlete that's also expecting a baby is, sprinter Wayde van Niekerk who recently revealed that he and his wife Chesney van Niekerk were expecting a baby boy.
“Crazy excited to announce we are having a baby!!!Blessings keep coming our way” he wrote.