What collaborations has Katy Huie Harrison been involved in to promote awareness for pregnancy after loss?

I'm sorry, but the available content doesn't directly address specific collaborations that Katy Huie Harrison has been involved in to promote awareness for pregnancy after loss.

However, Katy has been actively sharing her experiences and insights on this topic through her platform, Undefining Motherhood. She has been creating content that helps to normalize the conversation around pregnancy loss and provides support for those who have experienced it.

Would you like to know more about her work on Undefining Motherhood or her personal experiences with pregnancy loss?