Absolutely not
I lost one piece and that let enough of an opening to let a leak through that I’m assuming I had for awhile (too coincidental to get a leak at the same exact time my plug comes out) and I didn’t lose the rest until I was 8cm
ETA i didn’t have contractions or anything I went in because of the leak. Your plug can come out in little pieces and regenerate. It’s not like a cork and boom you’re in labor
i just remember with my daughter i did loose it before going into labor well weeks later i had her and i’m just wondering because with this pregnancy i don’t think i’ve seen it