Cut my workout time.


Usually i workout 6 day per weekend between 30-60 minute my workout plan is:2 days lower body,2 days upper body,1 day abs and one pilates,yoga(and i do 80%strenght training ).My exams will start only 2 weeks left and in this time i will focuse more to.learn so my question is:if i cut my workout time is half (15-25 minutes ) in the next 2 weeks i will lose the progress?