Mucus plug?

So 38 weeks been super crampy, TONS of Braxton Hicks today. Husband and I dtd this morning and I’ve been loosing pieces of mucus plug all day. I just went for a walk and did some squats and now feeling like there’s a tampon or something hanging in my vagina... it literally feels like a tampon is in there? I went to the bathroom and there was more mucus when I wiped but still feels like something is in there. Has anyone else felt this? Is it like a chunk of mucus plug maybe?