Signs labor is near?

I guess this is kind of mom related but I’m 35weeks and 3 days preggo, yesterday I had been feeling like I have to pee more than ever, having lower back cramps here and there, vaginal pressure, and the feeling of needing to use the restroom. I didn’t think much of it bc it’s my 3rd and just assumed I’m dropping. However, this morning I woke up to a very full bladder and bad pressure, before I flushed I noticed pieces of pinkish discharge. I feel like I’m losing my plug little by little, I do know it re generates but I’m just worried because of my other symptoms. I have contacted my drs office just waiting for a response but wanted to hear other experiences