My first Hubby's Second

Am I overreacting? I am preggo and almost every convo I have with my husband turns into a convo about his first son....Ex....I did 3d pics and didnt get a clear pic of the baby...My hubby goes on about how he got lots of pics with his first son and how cool it was blah blah blah...Next he keeps saying our baby gonna look like his first son...Mind you he looks like his mom more to me....Like why can't the convo just be about my son.