How do I know when my belly has dropped?

Vanessa

I'm 35 and 4, and I'm just curious to know how you ladies knew your belly dropped. She has been low the entire pregnancy, and I can feel her low in my pelvic region, and I'm super sore down there. Not sure if I've dropped yet, but can she really get lower than that?? Yikes! Lol

Thanks! :)