Oh hun

Sorry that your Dr wasn't very forthcoming on this one.

My understanding (I had a friend who had a similar thing turn up on her 20wk scan) is that because the kidneys are still so small at this stage (I am assuming that it was your 20wk scan) they need to let them grow a fair bit more until they can actually see what is going on.

From memory she had to wait until about 34 weeks to have a follow up scan and was told that in most cases everything is fine (which it was in hers). Also from memory the kidneys start to do a lot of fluid processing at about 36 weeks so they scan before that.

Hope that this does a little to settle your mind. Maybe your Dr wasn't too concerned because they often fix themselves and also there isn't much that can be done for a while anyway (doesn't make the wait any easier I know)