Hilary Duff is pregnant with her second child and this time it?s a girl! Duff announced on Instagram that she and boyfriend Matthew Koma are expecting. Matthew followed suit, announcing the news on Snapchat and saying she?ll be beautiful like her mother. Duff and Matthew were on and off for a while and have been steady together since October 2017. The Lizzie McGuire star has a 6-year-old son, Luca, with ex-husband Mike Comrie.