Gender confusion

London
Hey ladies got a private ultrasound done today and I'm 16weeks and 3days...the tech's I had to do the ultrasound are not trained to determine gender...the tech told me we could peek down there to see, so we looked and the baby kept moving so at first we couldn't see anything in between the legs then it seemed like there was a bumb can you ladies take a guess based on the picture below I'm really hoping for a boy hopefully that isn't the umbilical cord in between the legs