I had progenity test done to do further testing for genetics and I know the gender of my baby

So I had the progenity test done and the nurse said they had the sex of my baby and it’s what I have been hoping for! I was so happy to find out it’s a girl because I already have my boy. But today I’m not so excited I’m kinda hoping the test could be wrong and they tell me at my 20 week scan that it’s a boy. I know those test are like 99% accurate. I don’t know what’s going on with me could I just nervous/anxious about having a girl? I will love my baby no matter what maybe I’m just scared.