Do you think dogs can sense things?

So I think dogs have a way to sense when something is up with their human, like if theyre sad or not feeling well or even if youre pregnant. Dogs are super smart and insanely loyal, so i think that they can tell when we need them.

Allll day today ive had this horrible headache and when i wanted to lay on the couch my big ole pitbull was hogging the whole couch, laying across the whole thing! So i said to her "brooklyn can you move over, momma doesnt feel good" and she just rolled over to make room for me and as soon as i laid down she snuggled up to me and gave me a million kisses, then put her head on the pillow with me. So, my long point here is, i think she knew something was wrong and she knew she needed to help me feel better too. My pup does stuff like this all the time, since ive been pregnant she HAS to lay as close to my belly as possible and shes very protective of me.

Do you ladies think our doggies are smarter than we think? And do they sense things that are going on with their humans?