Baby's low but nothing's happening

Jenna • We had our first baby girl September 21 2015 👑 she's our world! Now we're expecting baby number 2 in Sep!!
I don't understand, when I get checked they say "oh baby's nice an low" but nothing else is going on. 
I even feel baby moving around lower in my stomach. 
I have Braxton Hicks contractions all the time but never the really thing.
My due dates tomorrow I haven't lots my mucous plug or really had any real contractions. I go in today lets hope something has changed and my
Body is moving the right direction!!! 🙏🏼