Only you can answer that.
I don't know any adoptees who were raised in loving, emotionally normal families who completely turned their backs on their adoptive parents. My (adoptive) parents are my parents. They raised me, they love me, and I love them. I did make contact with my original mom 24 years ago. She's a nice person, and we talk a few times per year. She is always interested in what I am up to, and what our girls are up to, etc. but she has her own kids who she raised (one is very close to her, and one is not by the way, so just having a biological child does not guarantee closeness) and does not see me as her daughter in the same sense her daughter whom she raised is her daughter.
All three of our daughters are adults, and I have a good relationship with all three of them - the one who became part of our family as a teenager, and the two I gave birth to.
Again, there are no guarantees in life, and all of us have to do what is best for us and our families. If you do have a biological child, do not *ever* let your adoptive children in on your thinking because they will see it as, "I wanted one of my *own* because you are poor substitutes,"
Adoptee and Adoptive Mom.