We had a second look at the end of February. Allegra looked the same, but the ultrasound revealed an excess of amniotic fluid, a condition known as polyhydramnios and common to Trisomy 18 pregnancies (due to baby's poorly developed swallow reflex and decreased kidney function.) This excess fluid caused me to measure 4 weeks ahead of schedule and was a cause of concern for delivery complications. Fortunately, things have caught up since then and I now only measure 1 week ahead (measuring 35 weeks when baby is 34 weeks).
We won't get another look at the baby until we go in for the birth.