Even if you did subtract fiber and you were at what I call 40 "net carbs" per day, that may not be so bad. Induction calls for 20 or less. After that you should add 5 per week until you get to the point where your weight loss stops.
Some people can eat 40 carbs per day and still lose weight.
Some people even claim that after Induction, continuing to eat only 20g causes a stall while increasing to 30g causes more weight loss. Go figure!

I think keeping close tabs on your carb intake while listening to your body is the key. A journal helps me. I forget from one week to the next what my body did.