I no this might be a bit strange, but how do you know you've lost your mucus plug? everyone now and…

I no this might be a bit strange, but how do you know you've lost your mucus plug? everyone now and again throughout the pregnancy especially at the end, every now and again I go to the loo and have ALOT of mucus on the tissue, like I mean alot. I've had the bloody show already according to the Hospital but from what I know about losing your mucus plug, I've lost it a few times already. Because you can lose your mucus plug and of you don't go into labour within 24 hours of losing it its just replaced by a new one. so I'm just wondering how do you know for sure that you've lost your mucus plug?