Earning the daily achievement badges is your task for one of the seven daily entries. If you're already on a streak and you get all the badges midway through the week, you can count it for that day. If you're not already on a streak, assuming you participate every day, you would get them and count them on the last (7th) day.

You can either wait to post all five badges until you have them all... or you can post them on the days you get them with your other entries, and then just make a note in your last entry which days you earned which badges so I can verify.