Can acne scarring occur even if I dont pop them?

Yes, if they are big enough and deep enough into the dermis.

However staying out of the sun is more important when it comes to reducing the risk of scarring. If you are prone to larger pimples, perhaps the ones with a plug under the puss that needs to be expelled before the pimple will clear, I recommend doing what you can to learn how professionals perform extractions. It involves finding the direction of the pore and applying pressure from the back. Very easy once you see it. I also recommend reading my book. It will prevent the acne in the first place.