Former Irish hurdler Deval O'Rourke and fellow Olympian Peter O'Leary are expecting their first child.
O'Rourke and her sailor husband are due to become parents in August.
The 33-year-old Cork athlete, who retired from international athletics last year, made the happy announcement on Twitter on Mother's Day.
She tweeted: "Happy Mother's Day from myself, my furry babies and my little bump."
The pair met on a return flight from the 2008 Beijing Olympics where they both competed for Ireland.
Last June, Derval told the Herald that she wouldn't consider starting a family until she was finished competing.
"You definitely can't jump hurdles being pregnant. We both want kids but I think I'll have to retire before we think about it," she said.
O'Rourke is a two-time European silver medallist but her biggest triumph came on Moscow in 2006 when she won a gold medal at the world indoors.
Earlier this month, O'Rourke hit out last night at the lengthy delay in her upgrading to a 2013 European Indoor bronze medal, saying the appeals process favours the cheater and "isn't fair on clean athletes".
The way has finally been cleared for her long-awaited upgrade to a fifth major championship medal, because an appeal by Turkish drug cheat Nevin Yanit - who won in Gothenburg - has finally ended.