Feeling fat today :( vent

Just need to vent.. I've gained 15lbs already at 17 weeks and I wore a light coloured shirt today which I rarely do and saw myself in the mirror... Ughhhh.. I know I'm pregnant I'm pregnant that's what everyone says I just am having such a hard time adjusting to the extra weight. I feel huge and I'm scared since I know I'm going to just keep gaining more and more from here. 
Any new perspectives/advice you ladies can offer?