Belly dropped

Jennifer
Tmi my belly dropped more and I'm 31 weeks and I'm wondering since I'm dehydrated from being outside in the heat today and been constipated today could it be the cause on me haven mild cramps but they been on my right side lower and when I touch the upper part by my hairs down below it hurts to touch and when I bend over it hurts here is a pic how low iam and this is from today