Fergie and Josh Duhamel
02/18/2013 AT 02:05 PM EST
There's another pea joining the pod.
and Josh Duhamel
are expecting a baby, the singer confirmed on Twitter Monday.
"Josh & Me & BABY makes three!!!" she Tweeted
This will be the first child for the couple, who wed in January 2009
Both Fergie, 37, and Duhamel, 40, have been clear about their desire for children – but kept the timeline open.
"Not right this second," the Black Eyed Peas frontwoman said in May 2011
, while her husband added
, "We'll go there at some point."
It seems the time has arrived.