Sharp rectum pains

Alyssa
2 days ago I got stuck in traffic for about 3 hours. The next day (yesterday) the rectum pressure increased. Today I woke up and I felt very sharp stabbing pains. Hurts when I move or even if I don't doesn't hurt when I poop though and no bumps or signs or hemrroids. 36 weeks. Has anyone felt this? Is it normal? Help!