If you entered wrong dates for your last period, this can easily be changed by clicking the + icon and adding or removing the period on dates in the past accordingly.
If you entered the wrong information for your height, weight, age, this unfortunately cannot be changed. If your weight fluctuation should impact your cycle, e.g. by delaying ovulation and causing longer cycles, the algorithm will take this into account automatically.
If you insist on correcting those answers, the only option is to go to “My Profile”, select “Delete Account” and create a new account, though we advise against this.
Deleting your account effectively means wiping out all of the data you ever recorded with the Ava bracelet. There is no way to retrieve that data once your account is deleted.