literally my friends are pissing me off

So my friends and family keep saying stupid jokes like what if your baby girl comes out a boy... like not that it would be such a big deal, I always thought I was having a boy but now that I have named her and got a lot of girly things they are making me upset and making me feel like what if the doctors made a mistake... I hate this maybe it's just my hormones and I am emotional, I just want to make sure its actually a girl! Please tell me, I am not the only one who's friends and family are being jerks this is my 16 week ultrasound and 20 week and six days anatomy scan.....