it didn't have any color but it looked like snot.
Sounds like just discharge. The mucus plug is thick and usually has a little color to it and pink or blood tinged. It looks like a large blob of snot.
Probably your mucus plug. It can come out in pieces. Mine came out at 36 weeks and when I told my dr, she said although it is exciting to think you're close to labor, it doesn't really mean much.