No matter how many more post you make, it won't be added to your activity since you can only gain up to 14 activities in each activity period, which is every other "Tuesday" (bi-weekly).
See the dates and approximate times here: https://docs.google.com/spreadsheets/d/12saLhlUoqIdairxzuSPu6EYGrt7FN2lOstO1yDjCEbA/edit#gid=1012758442