Kate Middleton
Kate Middleton is set to attend a gala dinner as the patron of Anna Freud National Centre for Children and Families. Pictured: Middleton visits The Sunken Garden at Kensington Palace on Aug. 30, 2017 in London. Getty Images/Chris Jackson

Kate Middleton has been getting more active in fulfilling her royal duties following her recovery from severe morning sickness.

The Duchess of Cambridge had stayed away from the spotlight for a while following the announcement of her third pregnancy. Earlier this month, she made her first public appearance since Kensington Palace revealed that she is expecting at a World Mental Health celebration, and since then, she has been spotted with Prince William and Prince Harry at different charity events.

For her next royal outing, Middleton is set to attend a gala dinner at The Orangery at Kensington Palace as the patron of Anna Freud National Centre for Children and Families (AFNCCF) on Nov. 7. For the event, the mom-of-two will be meeting the families supported by the charity, Hello! reported.

AFNCCF's latest projects will also be discussed. For instance, they just built a new Centre of Excellence where experts of and organizations involved in mental health, education, social care and neuroscience can gather together. It also welcomes the children and families who are in vulnerable situations.

Middleton has been active in supporting AFNCCF. In fact, in September, when the organization released an animation titled "Talking Mental Health," the Duchess of Cambridge found a way to be involved in it despite her pregnancy.

"Hello, mental health is how we feel and think things that can't really be seen but that affect us every day and talking about them can feel difficult," Middleton said in the clip to introduce the animation. "A charity called the Anna Freud National Center for Children and Families have made this animation with children just like you."

Middleton, Prince William and Prince Harry have already found a hashtag for their mental health advocacy. The royal trio, through The Royal Foundation, applied a trademark for hashtag #stopspeaksupport. The hashtag will be used in printed matter, banners, posters, instructional and teaching materials and promotional and campaign ads that are all related to mental health.

In related news, Having Kids charity recently called the attention of the Duke and Duchess of Cambridge and advised them to stop having more kids. The charity, which aims to protect children's rights through family planning, said they feel Prince William and Middleton are setting a bad example by having more children as this may encourage other parents to do the same.

"We simply want the couple to voluntarily choose to forgo another child," Anne Greed, executive director of Having Kids, said. "They can still choose to lead by example by saying: 'We are doing this to protect the environment and make a better future for all children.' Choosing a smaller family is the single most effective thing we can do to solve humanity's biggest issues – problems like low child welfare, inequality, and a degraded environment. Kate and William could set the example."