Hi Im freaking out a little bit and wondering iff any mamas out there have had 'soft markers' with there bubs that havent resolved by third trimester?

At my 20 week scan they found an isolated soft marker on babies heart (EIF)
Ive just had 30 week scan and the sonographer would not tell me iff the marker was still there and that I have to wait to talk to doctor with report.
I am so anxious and wondering iff any other mums have been through the same thing later in pregnancy and iff your babies ended up with any chromosomal abnormalities?
Im trying to prepare myself iff the marker is still there.

Thanks smile