I looked into this about post workout shakes and this site also states a person needs a good post workout meal. Well here is the site for you to look at www.acaloriecounter.com/diet/pre-and-post-workout-meal/

Intra workout is using a workout supplement during workout

Pre

Intra

Post

Can you? yes, i mean it's physically possible but why would pre-workout be called "pre" workout if your taking it after your work out ?

It would just be foolish to do that because the pre workout wouldn't do anything for you. you would just be getting energized after your already done working out there would be no point.

take your pre workout supplement 10 minutes before you work out and take your post workout protein/supplement within thirty minutes after your workout. I recommend taking your post workout A.S.A.P. after your workout.

Fitness magazine has a special article on a post pregnancy workout which was tried by four moms. The article is here: http://www.fitnessmagazine.com/health/lose-baby-weight/workouts/post-baby-workout-plan/

Actually both.....

Pre-workout they provide energy for your workout & potassium to the muscles

Post workout recovery they help provide protein which is an essential part of recovery.