Emma Roberts blocked mom on Instagram after she revealed pregnancy

Mother didn’t know best this time.

Emma Roberts revealed she had to block her own mother, Kelly Cunningham, on social media after she spilled the beans that Roberts and boyfriend Garrett Hedlund are expecting a baby.

During her Monday appearance on “Jimmy Kimmel Live!”, the 29-year-old actress explained that her mom — who only began using smart phones three years ago — found herself interacting with fans online and accidentally confirmed the news.

When a fan asked point-blank if Roberts was pregnant, Cunningham replied, “Yes!!” Another follower congratulated the family, Cunningham wrote, “Thank you so much! Very excited.”

“It was a disaster,” Roberts told Kimmel. “And I found it all out on a plane. So, I couldn’t get to her. Like, I couldn’t call her or attack her. I could just iMessage with her and DM her and ask her to please stop.”

Despite the frantic messages, Cunningham didn’t see the big deal.

“When I said to her, ‘Mom, you revealed my pregnancy,’ she goes, ‘Emma, you announced it,'” Roberts said. “I said, ‘No, I didn’t. That was a tabloid.’ She’s like, ‘Oh, that wasn’t clear.'”

She added that they “kind of laughed” about it, but later “kind of got in a fight” over the ordeal.

“I blocked her at one point. It was my only weapon,” the “American Horror Story” actress shared. “She texted me at 2:00 a.m., ‘Queen, did you block me? Sad face.’ I was like, ‘Yes, I did block you.’ Then I unblocked her. It’s been an Instagram war with my mother that I never saw coming. A good story to tell the baby.”

Roberts confirmed the news herself in August, posting a series of photos on Instagram displaying her baby bump.

“Me…and my two favorite guys 💙💙” Roberts wrote, confirming that the baby is a boy.