Cystic hygroma

Has anyone here had an experience with doctors being concerned for cystic hygroma? I’m 12 weeks along and I went to the hospital last night for bleeding with clots and was told I have a hemorrhage causing the bleeding and that’s when they saw what they think could possibly be cystic hygroma, my Ob was concerned about the same thing a couple days ago. Has anyone experienced this and went on to have a normal pregnancy? I can handle having a baby with downs but the other options are very low survival rates and I tried so hard for this baby I’m so scared😣