Opinions please

At 29 weeks I found out I was having a baby boy. In this process he was so shy. My doctor looked at his kidney and it's larger what it was supposed to be and May 11th we will have another ultrasound to check on my baby to make sure it's not any larger. Has anyone ever had this issue? How did you handle it? I am a freaked out mom concerned for my baby boy Blaizze but honestly he is so active and he is a blessing but I just want my boy to be ok. What do I do??