Reporter: She's the proudest momma on the block. Jessica simpson tweeting this over thanksgiving. Saying, I am so grateful for my new, little family. And now, "us weekly" claims simpson has another... See More
Reporter: She's the proudest momma on the block. Jessica simpson tweeting this over thanksgiving. Saying, I am so grateful for my new, little family. And now, "us weekly" claims simpson has another reason to be thankful. A second bundle of joy might be on the way for the fashion mogul. It is definitely not a planned pregnancy. She and eric are so excited. She loves being a mom. Reporter: While simpson won't comment on the report to "us weekly" or abc news, this proposed pregnancy has created a media firestorm. The 32-year-old weight watchers spokesperson had reportedly shed 70 pounds she had packed on during her highly-publicized pregnancy. Recently showing off her staggering transformation. Weight watchers doesn't have a comment. But she'll be able to carry this through her pregnancy. Reporter: While simpson's weight might be of little concern. Experts say there's real worry when it comes to having babies quickly, one after another. There are increased risk to the mom and the baby. Increased risk of preterm birth. Growth restrictions for the baby. Reporter: And she would hardly be the first celebrity to have back-to-back babies in hollywood. Tori spelling gave birth 11 months after delivering her daughter. And britney spears had james after preston. Whether simpson is or is not pregnant, she's a doting mom. I think the pride of my life is maxwell. Reporter: For "good morning america," abbie boudreau, abc news, los angeles.
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