Choroid plexus cysts (CPC’s)

So 20 weeks and found out we are having another little boy 💙

During the ultrasound though they found a “soft marker” which could indicate Down’s syndrome or trisomy 18. I already got the sequential bloodwork for both of those at 12 weeks and everything came back normal. Now my doctor said this is something that we should not be worried about and it should go away within 24-26 weeks of pregnancy but I was told I could get the cell free dna bloodwork to confirm that this 90% of being ok turns to 99% being ok and will put me at ease.

Has anyone else dealt with this and the baby was completely ok?