Tough to know based on what you described. My first thought would be to insert it back into your computer and see if you can download any remaining images so that they are not lost.

Then, I would reinsert into your camera and reformat the SD card.

If you do both steps without an error, you are probably ok, but me being cautious, I would likely take some test pictures, try downloading those, and then after downloading the test images, again insert the SD card in your camera and reformat the SD card in camera a second time.

If all that is done without any errors, you are likely ok.