Should a girl who repented from adultery and gave birth to a child, then abandoned her, inform her suitor about her past before marriage?

Adultery is a grave sin, and you have done well by repenting, becoming righteous, and committing to the hijab. Continue on this path with beneficial knowledge, righteous deeds, and the company of righteous women. You are not required to inform anyone who proposes to you about what happened in the past, and it is not permissible for you to do so; rather, you must conceal your past. If you are asked about a certain sign, use allusions.