McCullough shared the news on her website in a "2016 Year End Wrap Up" blog post.
"Two weeks before we [she, her partner and dog Jack] moved [into their new home], I found out I was pregnant again. And although I no longer have the luxury of being naive, I can’t help but think that the timing is just perfect."
She also revealed her pilot presentation, Hey Day, had been picked up by a production company, but gave no other details.
McCullough has played Robin Scorpio on General Hospital on and off since 1985.
Congratulations, Ms. McCullough!