just had my ultrasound at 18w6d. Found out we are having a little boy

echogenic bowel was found on the ultrasound. My doctor told me this can mean several things. 1) nothing 2) Down syndrome, however there were no other markers to support this 3) cystic fibrosis, however I have no known family history of this 4) baby swallowed some blood that could have been caused from an invasive procedure but I have had no such thing performed. I was asked if I wanted to do the quad screen again but I said no. We do not plan to do anything different with this pregnancy if we were to find out it was Down syndrome so I feel the test would be pointless. We will be scheduling another ultrasound in a few weeks to see if this resolved. If not, my doctor will refer me to another high risk specialist. Has anyone gone through this before? I'm trying not to worry but I can't.
Re: Echogenic bowel
Was the blood test the MaterniT21 or Harmony? These are non-invasive tests that are 99% accurate in detecting DS or other trisomies. It is important to find out, it's not pointless. Even if it doesn't change the way you feel, it does change the pregnancy.
If you do, indeed, have a special needs baby, the most important thing you could do right now is have time to prepare, not only for what could happen after delivery, but also in finding a good pediatrician or other specialists that might be necessary.
However, I have heard that this often resolves itself, and I certainly hope that this is the case for your baby!