Ultrasound lady made a guess

Okay bare with me here! Long story short, we had to go in for an ultrasound today (15weeks 4days) because my last pregnancy, my baby had hydrocephalus and doctor wanted to make sure Baby’s head this time was growing at the correct rate and that the fluid in the head was normal and brain was growing normally as well.

While looking at that, the ultrasound lady said baby was doing amazing and everything was normal (thank god) so she said she would so a small anatomy scan quick to make sure everything else was growing good and if baby cooperated, she may be able to see the gender.

Well, baby was a little jumping bean and wouldn’t sit still, not literally because although baby wouldn’t stop moving, baby was stuck sitting right on its butt 😅 so she said she couldn’t tell really, BUT she said she had a guess. Asked us if we wanted to know her guess or just wait. We told her we wanted to know, and she told us that her guess is a girl. She said baby obviously still has time to grow and move in a position to be able to see before our actual anatomy scan in 5 more weeks. But I mean, this lady sees ultrasounds every day all day so I assume she guessed girl for a reason and because of something she saw right? My husband obviously wants a boy, and I have a daughter from a previous relationship so I would love to have a boy as well (but as long as baby is healthy I don’t care).

My question (finally 😅) is, have any of you ever had a really early guess like that and have it be wrong? Or was it right?