7 weeks! Heartbeat 132!

Tiffany
Just had my first OB appointment last Friday. I was measuring 7 weeks exactly and heart rate at 132! So anxious to know what our baby is. We have 3 boys already so I would love to have a girl in the mix. This is our last chance so fingers crossed! Anyone know the Ramzi theory and can take a guess? The scan was transabdominal.