How does 4 placebo pills differ?

🖤Gracee🐾 • 🐾🐾🐾

In December I switched birth control pills due to my cramps being so bad.

I went from having 7 placebo pills to only 4, I am wondering how that works for my period?

On the 7 placebos my period would start on Friday (5 days on placebo) and last till Tuesday (second day on new pack)

Will my period be shorter?