16 two days a week, and the B-ultrasound said it was a girl. Is there a good chance of coming back?

You are still early, and your chances of coming back are still very high, because even if you are a male treasure now, your characteristics may not be shown, or the doctor did not see it clearly. For various reasons, it is generally more accurate to look at gender in the third trimester. There is a baby mother in our circle. When she was five months old, she looked like a girl and everything was ready. As a result, after seven months, she checked it again. It was a boy, and it turned over. You bought so many pink things for nothing, so don't buy them.