My scale is reporting the same number
I thought of mentioning this earlier, but I didn't want to divert from the conversation on your strength journey, but... the number on the scales is one of the worst metrics of health and fitness and "losing weight" is typically a bad goal. Pay no attention to the man behind the curtain!!
A better goal is losing fat if you have too much fat (and most of us do, though there are people who need to gain fat to reach optimal health).
One great thing about your weight loss is that you did it very gradually, which means that your weight loss was probably overwhelmingly fat loss. That's a good thing. It is MUCH easier to lose a pound of fat than to gain a pound of muscle.
Many crash diets actually result in losing
more than one pound of muscle for every pound of fat lost. Your body essentially eats its own muscle protein in order to fuel the processes elsewhere that require protein (like making blood cells and replacing cells in the heart, which are not optional, whereas skeletal muscle is).
All that to say that if your weight is the same, but your waist size is shrinking (or wherever it was you had to take in the pants), then CELEBRATE!
If you *gain* two pounds without the pants getting tighter, then celebrate again.
As we go into our older age, maintaining muscle is vitally important. Didn't you say you lost ONE HUNDRED pounds? Quick double check
gradually lost a hundred pounds.
I haven't seen you in a long while, but I would guess that after 100 pounds of weight loss which probably was mostly fat but probably involved some muscle loss (in general, if you go into calorie deficit you go catabolic and lose muscle unless you are both taking a lot of protein and doing strength work), adding muscle is probably more important for your long-term health now than losing fat, even if you haven't reached that pre-pregnancy weight yet.
So all in all, steady weight and shrinking waist is exactly the outcome you would hope for. Given how hard it is to add muscle at 70, you should give yourself several pats on the back.