Ultrasound gender guesses ? Skull theory ?

leena

This is my ultrasound today at 14 weeks 4 days . But when my tech started to measure the baby the baby was measuring 15 weeks 5 days close to 16 weeks ? I’m not sure exactly what that means or if the baby is just bigger . But would like to see your guesses on boy or girl . Heartbeat was

156 💙💖