Sequential Results

I just got my Sequential 2 screening results back and the doctor told me that they were abnormally high. I go back in tomorrow for more testing... I’m terrified and I’m broken. Does anyone know how accurate these screenings are? I just need some peace of mind. I’ve looked everywhere and none of the articles I’m reading say anything about the accuracy. I just went from being so excited to find out the gender in a couple weeks to absolutely broken in a matter of minutes.