Lost weight and inches- good sign?

I was surprised this morning to weigh 139 and measure 39 inches. A "tell"? I've been a pound and an inch more. (I know it doesn't sound like much, but for me it is a big difference). I might just be dehydrated- which actually is suggested as a natural induction. To fast for 12 hours. I'm on my 11th, but I'm so darn thirsty I can't wait anymore. It wasn't on purpose anyway. I have trust that my body and baby know the right timing. I feel good. I woke up around 6am but managed to go back to take a nap until 10am. That felt necessary. I got a chance to talk to my Dad, brother and sisters yesterday. They were at my Dad's for my nephew's first birthday party. I loved being able to talk to everyone. I wanted to be there and have them touch and talk to my belly. I miss them.