Baby measuring small?

GD is a trip for real. I’m 35w1d and have been on insulin in the evening for fasting numbers since the beginning of the month and I now do weekly NSTs to make sure everyone is tolerating the insulin ok. The two NSTs have been great, baby is extremely active and “happy” (so they claim) but I’ve had my uterus measured both times and I’m measuring around 33 when I should be at 35 😭. They don’t seem very worried, mostly just happy she’s not too big, but is this anything to worry about? I have my growth scan next week so I’ll know more plus my mom had pretty small babies (idk if that’s relevant here lol) but yeah, I just feel like there’s a never ending list of worries!! Which I guess is just parenthood. Has anyone had a smaller baby with GDM?