Does God View Adopted Children The Same As Biological Child?

In this episode, Dr. Betters answers the question, "Is adopting a kid the same as bearing a child? I ask this question from both a man's and a woman's perspective. I have longed to adopt a child/children for so long. I always thought it is better to give a better life to the kids who are already in this world than to give life to another being into this fallen and sinful world not knowing whether he/she would ultimately be saved. Is it safe to say that it is a calling on some people to adopt and not bear children or is it sinful to act in such a way and not have biological children in spite of having adopted kids? Please help. Thanks."