Fluid? 😫

We went for our follow up anatomy scan because baby girl moved a lot for the first time and everything looks good except a tiny pocket of fluid on the outside of her heart. My Maternal Fetal Medicine doctor (which is the high risk doctor for those that don’t know) she didn’t seem at all concerned. She said the measurements where in normal range just we will continue to get scans to monitor it. So we go back in two weeks. Has anyone had this in previous pregnancies or know of someone who did and everything was fine? I lost my daughter due to hydrops and Turner syndrome back in October. We did every genetic testing possible so we know that’s not the cause.