On Thursday, Roberts' mother, Kelly Cunningham, responded to multiple well-wishers on Instagram asking if Roberts was pregnant and appeared to confirm the good news.
"YES!!" she responded with a heart emoji to one user who commented, "Kelly is Emma pregnant???"
When another user congratulated Cunningham on becoming a grandmother, she responded, "Thank you so much! Very excited."
ET has reached out to Roberts and Hedlund's reps for comment.
Though the couple has been private when it comes to talking about their relationship, they've had no issue showing PDA while out and about. Aside from Roberts, Hedlund dated Kirsten Dunst from 2012-2016.