Can down syndrome be detected during pregnancy?

Yes, my doctor explained there are screening tests like the double marker and NT scan in early pregnancy, and NIPT blood test too. If those show risk, they suggest further confirmatory tests. She said it is best to do them at the right weeks, so plan with your gynac.

Haan there are proper screening tests for this in the first and second trimester. Both my pregnancies I did the markers and scans on time. Just talk to your gynac about which ones you need.