Kate Middleton Debuts Baby Bump

After battling severe pregnancy sickness for the past month, Kate Middleton is stepping out for the first time since announcing she is expecting her third child.

On Tuesday, the royal mom joined her husband, Prince William, and brother-in-law, Prince Harry, to celebrate World Mental Health Day at a special Buckingham Palace reception to honor those working in the mental health field and the royal trio’s Heads Together campaign, which aims to reduce the stigma surrounding mental health issues.