Gush of watery discharge? No pic.

Amy
So I woke up to something that felt like it was gushing out of me, I thought my water was breaking or it was my mucus plug. My SO flips on the light and it's a wet spot on the bed, with creamy white discharge, but I mean way more discharge then I have ever had. TMI it looked like a cum spot just cause of how watery it was lol but not as much as it would have been, none the less it was not cum. Anyone else experience this? I'm 39w 4d.