After fast expectations.

Glad to have found this community. Did my first 84 hour water fast. Have been low carb in the two days after.

Lost a total of 7lbs by the end of the fast and have gained just about two since returning to eating.

I expected an increase once going back to food. My question, is two pounds usually the range other people experience or do I need to tweak my diet post fast in order to maintain the total weight lost?