Help - my weight is STUCK

If anyone can help me, that would be awesome. I have lost over 150 lbs from my highest weight and now, in the home stretch, find myself plateauing like crazy. I am on WW and count points. I logged in my food intake here and it says that with my exercise today, I should eat 1731 calories and I logged in 1200. Does this mean that I am undereating by all of those exercise calories or should I aim for somewhere in the middle. My BMR is only 1176 cause I am really short...I am cofused! I burned 531 calories today so should I eat part of those? Help!!