8 week ultrasound question

Jenn • 🧒🏼 9-2016, mmc 11-2017, mmc 11-2018, chemical 12-2018 and 4-2019. Trying for that 🌈 🤞 🙏

Hi Ladies,

Does anyone know what the GA in yellow in the bottom right corner means? I just had my first ultrasound at 8 weeks this morning and am wondering what the 24% means.

Thanks in advance!