I’d like some clarification FTM

As stated in the title I’m a FTM. Wednesday I was 36+2 days. Since Monday I’ve been having mini contractions and losing my plug daily. At my appointment on Wednesday I asked to be checked because I wasn’t sure if I was having contractions or Braxton Hicks and it was confirmed to be mini contractions as I am 2 centimeters dilated and 70% effaced. Could my plug falling out in chunks daily since Monday and having these cramps mean I’m dilating more? It’s darker but no blood is present so I haven’t contacted my midwife, but I have had constant pressure in my pelvis with the occasional back ache. All while having to constantly poop which has been hard this whole pregnancy. My OB was genuinely shocked that I was already that far into effacement and scheduled another appointment for the following Wednesday just in case labor hasn’t started. Thank you in advance!