On the root of your SD Card there's a folder called "DCIM"...inside it is one called "Camera"...that's where everything I've taken with my camera gets stored.
Also, there's no need to pull your SD Card. Use the data cable (or pull it from your charger) to connect the phone directly to your PC and use USB Mass Storage Mode.
How to transfer, sync photos from iPhone to Computer
How to transfer photo/picture from iPhone to Mac