Need Reassurance

I am almost halfway through this pregnancy, and this child will be my second. I love this baby SO much and I feel SO blessed to be welcoming another child into this family and to be able to give my son a sibling. AND I am starting to feel nervous about how I could possibly love another child as much as I love my son. He is everything I prayed for and more! There’s no quality that he has (or doesn’t have) that I could wish this second child has (or doesn’t have) I am so proud to be his mama - he is perfect. For any second (or third +) mamas out there, is this normal?