Hilary Duff is pregnant and expecting her second child with husband Matthew Koma.The Younger star, 33, shared a Boomerang via Instagram on Saturday, October 24, of Koma, 33, as he rubbed her baby bump while she smiled. “We are growing!!! Mostly me …” Duff captioned the post.The couple — who tied the knot in December 2019 — are also the parents of 2-year-old daughter Banks.