can dogs sense pregnancy?

Jasmyne
I have a beagle terrier mix and she has such a personality so I notice right away when something's different. She used to sleep behind my knees at night and ever since and even a little before we found out I was pregnant, she's been sleeping at my belly. She's also way more clingy. And only wants me to take her out when she used to get excited when my bf would start to put his coat on to take her out. I'm really starting to believe she knows I'm pregnant but it's still so early. Only 5 weeks. Just wanna know everyone else's experiences with their dogs and pregnancy!(: