Speaking to the Metro, he said: "I find pregnant women very attractive - I think it's amazing.
"Some women can feel quite self-conscious, but I'm one of these guys that finds it really attractive, so bring on the pregnant look."
Judd said he's also encouraging his wife to eat when she wants, adding: "The most important thing is keeping her safe and having a nice healthy baby."
The 29-year-old, whose baby is due in January 2016, showed just how excited he is by uploading a photo of his wife's bump on Instagram.
The drummer wrote on the caption: "Look at that beautiful bump. I can't wait. #babyjudd."
Judd and his wife married in December 2012.
This isn't the first McBusted baby, as bandmate Tom Fletcher and his wife Giovanna are proud parents to 16-month-old Buzz and recently announced they were having a second child.
Matt Willis and his wife Emma also have two children - Isabelle, six, and Ace, three.