Anatomy scan..

This is my third baby and it's the first time the technician didn't ask me if I want to know the gender. I asked her myself if she was able to determine the gender and her response was "I didn't see anything between the legs so I guess girl" and then she shrugged her shoulders. Is it just me or was that unprofessional..now I'm uncertain and I'd really like to start buying things. I wasn't given any print outs that would even help me see anything myself. I cannot afford to splurge on a private ultrasound at this time with Christmas and everything so idk what to do. Can't even do a gender reveal because of this. I'm so upset. Any suggestions?