Fluid around baby’s heart 9 weeks

I have been looking everywhere and cannot find a similar situation with an answer. Had an ultrasound last week. Baby measured 8+6 with a strong HB of 171. But when we saw the doctor, she mentioned baby had a small amount of fluid around the heart. She said it could go either way. 50/50 chance of either it resolving by my follow up scan in 2 weeks or it being something that is not fixable basically. Looking for any stories of hope….or not. Just looking for similar stories in general. Thank you.