I actually started out my pregnancy almost 80 pounds overweight and ended up gaining only two oounds my whole pregnancy. After delivery, I had lost 20 pounds. I am not advicating this, only sahying what my situation was. I had such little weight gain, because I was so concerned with being overweight, that I ate healthier than I ever had my hwole life. Sooooooo that told me that had I put that much effor tinto it before I got pregnant, Icoul dhave done it. I had gestational diabetes and it did put my pregnancy at risk. Take at least 6 months if possible and realy commit yourself to losing some of the weight first. Drink lots of water, WALK 2 miles a day for at least 5 days a week and eat well. Trust me - you will lose some weight.