Feeling baby “low”

Kiara • ~🥰Momma to 2🥰~

How long can baby be “sitting low” before labor starts. I know sometimes it can take a while but in general when did you start feeling that extremely low feeling. When I am sleeping or laying down I can feel baby bulging in my pubis area. I just have this gut feeling it’ll be soon. TMI but isn’t diarrhea one of those pre labor signs.