She definitely looks pregnant, but it could just be the dress. It's hard to tell because she's holding her purse in front of her stomach, but it definitely looks like she's pregnant, from what I can see. If that's the case, I'm super happy for her!
I hope it doesn't delay the new album, though. If she's going to have a baby, she needs to hurry up and have one because she's got a tour planned for 2017, so I'm guessing that's when the new album is coming too.