I agree with LaMa. I have had a couple 2 week plateaus where I then suddenly lost a bigger amount. They are very frustrating, but changing things up doesn't often help.
If an accurate count,* your calorie deficit is probably getting close to the maximum you can maintain without your body cannibalizing lean tissue. If you want to strive for this maximum amount:
First estimate your body fat percentage:
Body Fat Calculator (e.g. based on your bmi, you might have a body fat percent of 34% but this is an inaccurate estimate)
Then multiply that percent times your body weight to find how many pounds of fat you are carrying (e.g. 150 lb x 0.34 = 51 lb of body fat)
Then multiply that by 20 to see your maximum daily calorie deficit (e.g. 51 x 20 = 1020 calories).
Then estimate your resting metabolic rate:
BMR Calculator (e.g. a 25 y/o 5'2" female weighing 150 pounds probably burns about 1650 calories in a sedentary lifestyle)
Finally add your exercise to your RMR and subtract your maximum calorie deficit to find your daily calorie target (e.g. 1650 BMR + 500 exercise - 1020 max deficit = 1130 minimum calorie consumption
You'll have to keep doing this calculation over and over because your maximum deficit will decrease as you lose fat. Alternatively, you could just aim for a daily deficit of 500 which would be much slower, but you probably won't ever lose too much. Either way, make sure to do some strength training in your exercise to encourage your body to keep rebuilding/maintaining your muscles.