“So who was gonna tell me about the lower back pain?” the Rhode founder wrote on Instagram after sharing her and husband Justin Bieber’s pregnancy news last month.

Hailey Bieber/Instagram (2)

Hailey Baldwin Bieber is opening up about her pregnancy symptoms.

On a recent Wednesday, the Rhode founder, 27, shared a snapshot sitting in a wooden chair, showing off her baby bump in an Instagram Stories post. Hailey wore a green quarter-zip sweater and black shorts, with her hair pulled back in an updo and an unimpressed expression on her face.

“So who was gonna tell me about the lower back pain?” she wrote across the image, adding a few pregnancy emojis.

Hailey and her husband Justin Bieber, 30, shared the joyous news of their expecting their first child on May 9 through a heartfelt joint Instagram post.

Hailey Bieber/Instagram

In a tender video of their vow renewal accompanying the announcement, Hailey donned a dreamy Saint Laurent by Anthony Vaccarello white lace dress, complete with a lace headpiece doubling as a veil.

Since sharing the news, the Biebers have been regularly posting photos, showing their excitement ahead of their little one’s arrival. On another Friday, Hailey shared a mirror selfie on her Instagram Stories, offering fans another look at her growing baby bump in a slightly cropped, striped shirt.

Following the big reveal, Hailey’s representative confirmed to PEOPLE that she was just over six months pregnant at the time.

Justin Bieber/Instagram