I had it with my first pregnancy, and I am walking a fine line with it this time. Switched to a low carb, low sugar, high protein diet and got a bit more active. I did fine. I checked my levels before and 2 hours after every meal.
I was devastated the first time around. but I have been there done that, so I am managing better this time. I was tested at 16 weeks and failed my 1 hour glucose test. My doctor and I discussed and I am managing just fine, with normal sugars when I test once a week. I will have to go retake the 1 hour glucose test in a few weeks to retest.
It's no fun. But it is really easy to handle.