TMI ladies, was that my mucus plug? 38W5D

So, 30 minutes ago or so I started having cramping like If I wanted to go to the loo. Which I did so I figured cramping is normal before a bowel movement I guess. So I went ahead did my business but after I pass my first bowel, I felt like a blob fell out of my vagina into the toilet. I didn't put mind to it until I finish and was curious. Eventually I couldn't see anything since I 💩, but I did wipe to see if anything and nope didn't see nothing. But has that happened to anyone? Hope I did explain myself right..