Thanks for the link! When the OB commented on the tear, she was repairing it. I'm going to ask her what degree it was when I see her again, but from what she said and the info on the page given, it was maybe first or second degree. It was one day postpartum when the tear was repaired, and 3 weeks later it's almost completely healed.
It's kind of strange. The OB said it didn't tear through the anal muscle, but did tear through the vaginal wall. She also said it was bilateral. So, I'm confused and want clarification from her, now that I'm not in the midst of the stitching and know it's ok. At the time, she made it sound terrible, even though there was surprisingly little blood lost, and it only hurt after the stitches were in.