Wanting to lose weight while pregnant.

I am 11w 1d pregnant, I'm 5'10 and I weigh about 197. Im super scared I'm going to hit way over 200 before too long. Since meeting my boyfriend and getting pregnant I've gained about 27 pounds. I'm not looking into losing a bunch of weight just trying to keep my number below 200 and or go down just a bit. Does anyone have any tips or tricks they used to keep the weight down while pregnant??