This take a look at can provide a extra detailed picture of the baby’s heart than a daily being pregnant ultrasound. Some coronary heart defects can’t be seen before start, even with a fetal echocardiogram. If your healthcare supplier finds an issue within the structure of the baby’s heart, a detailed ultrasound could also be done to look for other problems with the creating baby. First trimester screening is a mixture of exams completed between weeks eleven and thirteen of pregnancy. It is used to search for certain start defects associated to the baby’s heart or chromosomal problems, corresponding to Down syndrome.