13 week Scan. can anyone guess the gender? I am dying to know. added new shots

We took this scan in the 12th week of my pregnancy. But as per scan I am 13 weeks and 1 day. Doctor said she has an idea but will only be sure of the gender after 16 weeks. I am dying to know. Can anyone guess and help me based on their personal experience ?
Heartbeat : 160bpm
At 11weeks it clocked at 170bpm