Sort of. I had very mild GD w/my pregnancy w/DS. It was totally diet and exercise controlled.
When I was preggo w/DD, since I had a previous diagnosis of GD, my doc requested that I take the test early (around 16 wks I think). I declined that test. As my GD was very mild (so mild as to be practically nonexistant, don't get me started), I didn't feel that it was worth putting myself through the test. If the outcome of finding out that I had GD was to adopt a GD-friendly diet and keep on exercising, well, I was already doing that, and there was no point in taking the test that early on. If I passed at 16 wks, I'd have to take the test again at 26ish weeks, anyway. I had no sugar in my urine, had minimal weight gain, was eating right, and was exercising (I ran/walked a 4 mi race in the 3rd trimester).
I did take the test later on in pregnancy, and passed w/flying colors.
mommy to DS who is 9
DD who is 6
and my girl in heaven