Boy or girl ?!?! Umbilical cord ?!?!

I've decided to keep the gender of my baby a surprise until baby is born BUT after my 3rd ultrasound they put the gender on the after summary papers :( well it said GIRL and so when I got home I opened the gender pictures that they gave me at my 2nd ultrasound . To our surprise it says BOY !!! The pictures clearly look like boy parts but at my GD appointment today , the doctor mentioned that I'm having a girl . I just want opinions on the pictures , do you think girl or boy or possibly umbilical cord ?? TIA !! :)