Ok so I'm confused this is my second pregnancy and I'm noticing a lot of you saying you lost your…

Ok so I'm confused this is my second pregnancy and I'm noticing a lot of you saying you lost your mucus plug so I googled it to see what exactly your talking about and I'm pretty sure I lost mine a long time ago I'm 35 weeks on Tuesday I have heavy discharge but I don't believe I've had any signs of me going into labour so I'm confused because it says when you lose it you should go into labour two to three weeks later if I lost mine I lost it a good two or three months ago anybody have any say on this?