about the two moms. Pictures post-pregnancy have gone viral but for different reasons. Karen said she has a near-perfect body. And it's not all it's cracked up to be. And she's taking aim on fit mom, the california mom of three, whose picture sparked outrage. Reporter: These two women might look like they have a lot in common. Both mothers of three. Both now internet sensations after posting postbaby body photos that have gone viral. But their messages are completely different. 35-year-old taryn is making waves for her series of postbaby body photos. She says after her third child, she became obsessed with getting back to her prepregnancy body. Working out to get this body, she considered plastic surgery. My body changed a lot after having three children. And I tried really hard getting back into the shape it was before the pregnancy. Reporter: But now, she's showing off her current body. 20 pounds heavier with a rounder stomach. A postbaby body that women think is more realistic. You can love your body before and after. Reporter: Her photos are drawing comparisons to maria kang, the mom of three, whose what's your excuse photo caption, led to a firestorm of reactions, with many accusing her of fat shaming. Reporter: She is now speaking out against kang, saying these ideals are unrealistic and unhealthy. And wants to encourage women to love their bodies at any size. Health is not dictated by someone's looks, their size or their weight. Reporter: But kang says she is simply a healthy mom, trying to be a positive role model. Is there a right or wrong answer in this great mom debate? We have to be careful in our society not to characterize something as normal or not normal. Beautiful or not beautiful. Reporter: For "good morning america," bianna golodryga, abc news, new york. Both of us had to deal with postbaby weight. The second one was harder. I didn't have to go through the third. I imagine that's even harder. Wherever their comfortable.