SanDisk Extream Pro ( Problem with drive please format ) HELP!

Ugh, So I’ve NEVER experienced an issue like this before and I’ve searched for hours. 

I shot a wedding last night & everything was going great… Photos looked amazing on camera and memory card didn’t show any issues in camera. 

I come home go to import the photos and insert my SD card into my reader BOOM  “You need to format the drive before using it” 

I don’t wanna reformat this because than I’ll loose everything on the card, I tried sticking the card back in to the camera an it’s saying the memory card needs to be formatted. 

I’m stuck. 
Please someone save the day.