Safe weight loss during pregnancy (esp. early trimesters)

I know this is a bit of a taboo question, but I was wondering if any ladies out there have successfully lost weight during the first and maybe second trimesters. I'm approx. 8 weeks along and borderline obese (5'7", 202 lbs). The guidelines I've seen indicate that I should gain only 11-20lbs and the bulk of which should be during the third trimester. I'm terrified of developing gestational diabetes or worse and wondering if I'd cause more harm than good if say I tried to lose about ten pounds over the course of the first & second trimesters such that come delivery day, I'm back around 200-ish (so a minimal weight gain if any in total). I'd love to hear if anyone has done this successfully.