Canceling SAT subject test scores?

So, I just got my SAT subject test scores back and I did an awful job. Like, 22nd percentile awful. I’m a little freaked out because the scores are already on track to be sent to colleges. The status is “awaiting fulfillment”. Is there any way at all that I can cancel these score sends? Please help! I’m really worried that this is going to reflect very poorly on my applications.