Princess Kate shows off her pregnant belly in stunning black lace dress at charity gala

Kate, 35, attended the gala for the mental health organization.

Kate has tried to stick to her schedule of engagements as her health allows, particularly for events that benefit young children and raise awareness for mental health.

"As a mother just getting used to leaving my own child at the school gates, it is clear to me that it takes a whole community to help raise a child," Kate said at today's forum. "Whether we are school leaders, teachers, support staff or parents, we're all in this together."

She added, "We are all working to give children the emotional strength they need to face their futures and thrive."

Tuesday's gala benefited the Anna Freud National Centre for Children and Families, an organization dedicated to mental health accessibility and treatment for young children in need. Kate has been a champion of better resources for maternal mental health and programs that support early intervention for vulnerable children and families.