will my weight loss slow down

It does get slower and slower the less you have to lose
I started at 192lb and was losing 1 or 2lb a week, now at 153lb, I am lucky if I hit half a pound a week and I work out more now and eat less. It is just less effort to move your own body weight around and older fat is harder to get off.

First off, it's critical that you identify your expectations for weight loss (not necessarily publicly, maybe just to yourself). 0.5-1lb a week is probably a reasonable goal for fat loss with someone who only has 14lbs to lose.

Your first few weeks will always be way higher when it comes to quick weight loss. The closer you are to your ideal, the slower it goes. It comes off more quickly on bigger people, partially because they are further from their goal, but also because they are moving more weight around on a regular basis (it burns more calories to move 250lbs than it does 100lbs, doing the same thing). Also, less doesn't necessarily mean more. If you are looking to lose more than 1lb a week with only 14 lbs to lose, you will have to reduce your calorie consumption by about 3500 cals a week (either by exercising it off or consuming it less). If you are consuming less than 1800 cals net (approximately for a male), you may turn your metabolism down and will start your body storing fat and reducing muscle. Also, once you've met your goal (in about 10 weeks), you'll resume eating habits and your metabolism will be slower (because of decreased muscle mass) and so you will likely gain some of that 14lbs back.

For the first few weeks, focus on proper hydration, not losing muscle mass and eating healthfully. Those three things combined might give you slower weight loss than what you are expecting, but you'll be able to sustain it.

You may need to increase your exercise over time to get the same benefit from it. But as long as you are eating less calories than you use each day, you should still lose weight.