Gender!!!!

I’m so crazy here hoping I am having a girl, I have a son already and I want to have one of each! Had my 16week scan and the sonographer said she thinks it’s a boy but she can’t confirm till 20weeks scan I know it’s few days away but I can’t wait. I am hoping what she saw is not actually a willy but umbilical cord maybe. My guts have been telling me it’s a girl from day one. Your words will be appreciated 😅