You only have 8 pounds to lose. Even weight loss expectations aren't linear - that is it's not true that every person can lose 1.5lbs a week if they want to. For some it would be holding back, where they can actually lose way more, for others it's too aggressive a goal.
Your body wants to lose less weight per week, the less weight there is to lose.
I generally recommend to people to think in terms of 3% of excess weight per week, rather than a reflection of their bodyweight (1% normally offered for that) or any static goal like 1.5lbs.
With 8 pounds to lose then, you'd lose 3% of that a week, or one quarter of a pound.
Trying a too aggressive goal can often stop weight loss.
All our estimations of calories are only estimations and guesses. A quarter of a pound would be extremely difficult to manage exactly. So I tend to recommend no lower than half a pound a week as a reasonable goal. So you should have your goal date set to 16 weeks away.
Ask yourself this - if you lose 1.5lbs a week and it's all gone in 3 weeks, what do you eat then? Do you go from 1400 max up to 1900ish to maintain overnight? Do you think that's a good thing for your body?
Ease into maintaining by losing the last few VERY slowly.
I generally recommend setting up your goals for maintaining your ideal weight instead of weight loss at this point now with so little left to go, and then just aiming for the bottom of that range instead of within that range. That will create enough deficit to lose half a pound a week and stay on target - and have you close enough to maintaining that when you do, it's not a system shock.
Deb, in New Zealand