actually sex during pregnancy is like rocking the baby! so it shoudnt harm the baby. if you cramp badly afterwards followed by bleeding, then I'd contact the dr. but if you're concerned, just dont do it so roughly!
just make sure you bring WHAT YOU NEED like the medicine, maybe a security lovey (anything to make her familiar with her surroundings). the outdoors is very healing! hearing the birds, smelling the forest in the morning...have fun!! since you've kinda done it before I dont see harm in camping...
if she's whining while pooping, sounds like she might be a little constipated! if the poop is very dry, make sure she is enough formula/breastmilk when she is hungry. you can help her poop easier by massaging her belly or doing a bicycle motion by bending her knees to the tummy (this helps...