can puppies sense pregnancy??

Azia • Wife. Sep 18’ 💙 Nov 19’🤰🏽

I got a puppy not too long ago, now she’s 16 weeks and is clingy as hell. she seems a little nicer than usual, but idk if it’s just cause my husbands gone and it’s just us or because i’m pregnant lol. are puppies this young able to sense it??