She is pregnant with a baby and is struggling with lower back pain

Hailey Bieber used her Instagram platform to mark two years of her Rhode skincare line on Saturday. The 27-year-old expectant mom posed in a light gray, cropped T-shirt as she cradled her baby bump.

Since announcing that she's expecting her first child with Justin Bieber in May, Hailey Bieber has kept fans updated on her pregnancy.