Mucus plug help, 36 weeks, ftm

So I know mucus plug isn’t alarming unless with bloody show typically but the past 2 days I’ve had severe lower back & vagina pain and every time I’ve gone to pee I’ve lost pieces of my plug. I also just started to feel cramps like diarrhea cramps the last hour but nothing consistent & they’re not terrible but it just started. I’ve been having a lot of Braxton Hicks this past week as well, they got to 10 minutes apart lasting for a minute but then they fade. Could labour be near? Again, a ftm, I’m unfamiliar with labour but this is different than what I’ve been experiencing so far. Thank you for the help of you answer!