b/g twins weight at 18 weeks

Kelly 👧🏼👼🏼👶🏼👶🏼 • Married 👰🏻 (2008), 1 DD 👧🏼💖(2012), 1 DS 👼🏼💙(became an angel 2/26/16), spontaneous B/G twins 👶🏼💙👶🏼 💖(2017)
I had my anatomy scan for my boy/girl twins today at 18+4. Babies looked great and both weighed 9 oz each. My <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> says they should weigh 6.5 oz each. I know all babies are different and Glow is certainly just guessing but I'm curious, what your babies weighed at this stage?