Mucus plug? TMI 😅

So I’m only about 30 weeks right now with my first pregnancy. I haven’t had really any discharge the past few months and have been extremely dry actually even during sex. I went to use the bathroom today and noticed a long string of discharge on the toilet paper? It was literally maybe 3 or 4 inches long and a thick string. I looked it up online and it said it was probably my mucus plug. I haven’t bled or anything but am not sure if I should be worried or not since it was such a dramatic amount? I know that soemtimes people lose small amounts of their mucus plug and itssupposed to just grow back, but this was a lot! LOL