Worrying about birth defects, looking for reassurance

I’m adopting my rainbow baby from birth his due on July the 8th, His birth mom discovered she was pregnant at 28 weeks so there was not prenatal care before that.

So far he looks happy and healthy on both 28 and 33 weeks ultrasounds, but on the one performed yesterday at 35 weeks he is measuring 2 weeks ahead, presents mild renal ectasia and slightly more amniotic fluid than normal.

The doctor doesn’t seem worried but I made the mistake of asking google about it and now I’m scared to death, he might has a health problem.

I know that this fear is normal for every expecting mom and I know that in my personal case is more because of my previous trauma I’m just looking for some reassurance please