Okay so I locked my two Pomeranians in my upstairs while I went to the store. About 30 mins. when I got back I could hear my female dog from the upstairs 'barking?'. I don't know if they mated because usually they bark while I'm gone. But 1 day later, I started seeing my female pom cleaning herself more frequently, she's more calm, & she's just acting differently. I'm not sure if she's pregnant or not. We've been trying to get them to mate for a while & I'm hoping that she is pregnant but I'm just not sure.