Just seven months after giving birth to her daughter Maxwell, Jessica Simpson is reportedly pregnant with her second child.

The pop star, 32, and her fiance Eric Johnson are thrilled by the unexpected news, according to Us Weekly. A source told the magazine, "It definitely wasn't planned. But yes, Jessica is pregnant again. She really is overjoyed!"

Simpson hasn't confirmed the rumor; however, she waited months before officially revealing she was pregnant with her daughter.

The news comes on the heels of the star's drastic weight loss. Simpson dropped over 40 pounds after giving birth and was very open about her struggle to lose the post-baby weight. She signed up as a spokesperson for Weight Watchers to slim down.