Diarrhea with birth control

I just had to renew my prescription for birth control since it’s been a year that I’ve had it and when I went to the pharmacy to pick it up it looked different. The pharmacist said it’s the same pill they just rebranded or something. I was taking apri now it’s called isopropyl or something like that. Anyway I’ve been having diarrhea everyday could that be from the pill or probably something from my diet since they said it didn’t actually change?