Gestational diabetes numbers, just started but doing ok???

[Mabv812]

So I started my gd diet little over 3 wks ago. My numbers show im in range 85 to 90% of the time. Ive had a handful of readings in the 150 and 140 range. Also, I've lost 3 pounds! That's the most surprising thing to me! I dont feel like the dr would have a reason to put me on meds, but I'm scared to go back and explain every high number. It's my anniversary today and we are going to a special brunch. I'm worried about that, but hoping my numbers aren't ridiculously high. Eek!