updated 03/24/2014 AT 2:00 PM ET
•originally published 03/24/2014 AT 2:45 PM ET
They’re engaged, pregnant and starring on TV together!
The pair, who first met on the set of another TV hit, That 70s Show, in 1998, will once again share the small screen in an episode that has already taped.
“They are both very, very happy. It’s still early,” the source says. The friend of the couple adds that rumors of twins are false.
The couple has not revealed a wedding date, and a source says they aren’t in a rush to walk down the aisle.
“It won’t necessarily be a short engagement,” the friend says. “They haven’t begun planning the wedding yet.”