decreased movement?

Alisa • Mommy of 2! Baby #2 due November 19th. Happily married.
I am 38 weeks today and I have noticed very decreased movement. She usually moves all day everyday. I don't know if I just haven't been paying attention or if she actually isn't moving much. Is this something to be worried about? I'm laying on my side and tried drinking some cold water and I just get very minimal movement. My dr said decreased movement go to labor and delivery but I don't want to go in if I'm overreacting. :/ what should I be looking for? Should I just call L&D?