emotional struggle with weight gain

I keep trying to remind myself that the weight gain is for our baby, that it isn't all "me," that it will change day-to-day, but some days (like today) it takes an emotional toll. I have been overweight my whole life and have struggled with my personal appearance (not uncommon in today's world). Today, I have gained a total of 30lbs...and still have 15w left to go before LO gets here. How are you other mommas doing with the emotional toll the gain is taking? What do you do to stay positive?