Had my first at 27 three and a half years ago; first trimester screening results were 1: 50,000 and Pataus 1: 24,000.
Now pregnant with my second at 31 (healthy, non smoker etc) and the results have plummeted down to 1: 5,000 across the board.
Really shocked by how much lower this time, would love some reassurance that this is normal in second pregnancies and is related to age. Freaking out a bit.