Anyone experienced "bright spot" on baby's heart?

Ashley

I'm pregnant with my second baby girl, had suffered a miscarriage early this year, so this pregnancy has been full of ups and downs. My husband and I have been seeing a specialist in regards to a bright spot on our baby's heart, and have been told that it could possibly be a sign of Down syndrome... has anyone else experienced this? And has anyone actually had a baby with Down syndrome?

I've chosen to not do the tests, as long as I have a happy healthy baby that's all I can ask for.