You do not have the pass for 7 trains but for 7 days. On those days you can use as many trains as you want. As long as you board the last train before midnight, only one pass day is used.

Did you have a look at my answer in your previous thread ?

There are engineering works that week in Denmark and the schedule is not published yet, it could take some time. Night trains may or may not run. You might have to take a bus for part of the journey too.

Check back in a few days or weeks on bahn.com, sj.se, snalltaget.se (both companies operate night trains to Stockholm through Copenhagen) or dsb.dk.

I checked in sj.se and snalltaget.se but the tickets are not available. In bahn.com I don’t how to insert my interrail pass and also one change is after midnight so it’ll count as 2 days. 

You don't. You just choose "Seat only”. But bahn.com is useful in general, to check timetables.

Ah ok thank you. But still the tickets are unavailable 

Yes as told earlier, there are engineering works around your travel date so the timetable hasn't been published yet. Tickets aren't available either.

There might be buses involved for part of the journey and no night trains could run. Check back in a few days or weeks.

As no one knows if there will be any night trains running that week due to the construction works in Denmark, you might want to consider travelling durig the day.