On a number of occasions, I called Telehealth (a triage number where a registered nurse finds out what's up with you and tells you if you need to be seen right then or can wait until morning, or Monday, or whatever.) Every time, they asked about grey material in the blood, and every time, I knew exactly what they were getting at - and had absolutely NO CLUE if it was happening, because the volume was too great. I was pretty sure I wasn't pregnant each time, because we were pretty careful. But the carefully-worded questions to rule out a miscarriage always caused me more suffering than any other part of those conversations.