Transcript for What Would You Do: Man pushes pregnant wife to lose weight
Reporter: With expectant celebrities and fitness buffs flooding our feeds, social media has come up with what it expects of mommies-to-be. First, don't add too many pounds. If you do, the internet trolls will weigh in. Then whatever weight you gain, lose it immediately after giving birth, just like these famous moms reportedly did. Tweets and blog posts can make pregnancy seems like a marathon, where the only way to do it successfully is to train. And all that online pressure can take its toll, especially if you have a husband like Debra. Push it. Wait, wait, wait. I got to stop. I'm starting to feel some pain. You're not allowed to use this baby as an excuse. You think I want a wife that looks like this? Reporter: If you saw a husband pushing his pregnant wife to get a head start on losing the baby weight -- Come on, let's go. You've got fat to burn. And one -- come on, let's go. Reporter: What would you do? We're at saddle river county park, in saddle brook, New Jersey. You promised to work out, and I don't want a fat wife. Oh, god, I really need a break. I feel kind of dizzy or something. Stop using the baby as an excuse. It's not an excuse. Reporter: This woman hears what's happening, and she's got no time for Andy's insensitivity. I heard what you said about a thin wife. I think you look awesome. We made a deal. If we're going to have this baby, she's going to stay in shape. She's going to go back to shape. All your wife has is a belly. But she's lazy. She's using the baby as an excuse. Well, we all do that. We all need some relief, some reason torque say I'm tired, leave me alone. I think you should just mind your own business because I can take care of this. , You take care of yourself. I'm sure you will. Okay? Good luck with the baby. Oh, good luck with the baby. Reporter: A polite good-bye, but what is she really thinking? I wanted to punch him out. I really did. I was just saying I wanted to punch him out. Reporter: He was being too rough on her? Oh, he was being hole to her. Horrible. I don't understand how a woman could be married to a man like that. Reporter: Your message to husbands who do that? There's the door. Don't let it kick you in the ass on the way out. Reporter: Andy's back at it. I need a break. You just took a break. Reporter: This woman looks horrified by what she's seeing. Reporter: And with that, she exercises her right to speak up. She's pregnant. Yeah, but we made a deal. If she got pregnant, she wouldn't get fat, and she's gotten fat. She'll lose it. If she eats right and she keeps up a good regimen, she'll be fine. Oh, my god. Am I crazy here? Yeah, a little. Reporter: When Andy storms away, she counsels Deborah, woman to woman. Your self-esteem is going to go down to the ground. That's wrong, very wrong. I know, but he is the father of my child, and I got to -- Oh, yeah. -- Work with him, you know? But you have to work together. You have to defend yourself too. You have to let him know, like, "It's my body." Yeah. I'm gonna take care of myself. Reporter: Hi. Hi. Oh, my god. John Quinones. How are you? Reporter: I'm good. Why is it important to step in? Because it's not right. Especially a man to speak to his wife like that. It's belittling to her. He needs to encourage her, walk with her together, not put down a mat and tell her she's using her pregnancy as an excuse and that she's fat. I probably would have walked away. Reporter: As the day continues, so does the show of support for our pregnant wife. You're the laziest person I've ever seen. This is a joke, right? You're not really talking to her like that, right? She's my wife. Come on. Nobody talks to their wife like that. Especially their pregnant wife. You okay? I'm going to be okay. Do you need me to call somebody? You should mind your own business. Wow. Reporter: This woman doesn't hesitate to step right up to Andy. I feel like you're being really rude. She's trying her best, and that's all that matters. She looks wonderful. Reporter: And this woman just won't back down. You should've seen her before she was pregnant. We looked like Ken and Barbie. Now we look like Ken and Shamu. Excuse me, you're not pregnant. She is. She's using that baby as an excuse. I don't agree with you. I have to live with her and look at her every day. Oh, that's terrible. He has to grow up. Reporter: So far, we've only heard from women. But now it's time for a couple of men to weigh in. Your wife looks good, man. She's gotten too fat. Doesn't matter, man? It is what it is, you know what I'm saying? What if this was your wife? I still love her, you know what I'm saying? And the deal is we could have a baby, she wanted to have a baby, but she'd have to stay in shape. She's not allowed to get fat. Believe me, when you have that baby, you're going to find out that you're not going to want to give a About anything except that that kid comes out healthy. Reporter: We're rolling one last time. Let's go, let's go. Don't use this baby as an excuse. Stop with the whining. Reporter: Heidi Rodriguez silently shakes her head as she passes and keeps her eye on the situation from a distance. Why would you yell at me? Because you're fat and lazy. Reporter: Until -- You know what? If you want to let yourself go, fine. I'm through with you. Reporter: Now, she just has to step in. Hey, do you need help? Are you okay? Are you all right? It's my husband. I know. I did hear when I was passing by, but don't let him bully you like that. I just don't know what to do. But you're pregnant. He can't do that to you. He just doesn't get it. And he won't, but you don't need to please him, like, that can be dangerous for your baby too. Reporter: We send Andy back in. Why are you bothering this woman? Oh, she's not bothering me. I walked up to her because she was upset. She's okay. I'm just trying to get her in shape. You can hurt your baby by pushing her so much. Like, she's telling you she needs a break, you should listen to her. What's wrong with wanting a hot wife? She's hot. She could be way hotter, trust me. Come on, she's pregnant. She deserves a break. If you were carrying that belly, you would want a break too. Reporter: Do you want to break it? Yeah, sure, let's break it. So please, you know, give her a break. Will you do me that favor? Reporter: Hi, there. How are you? Oh, my god. Reporter: It's "What would you do?" -- The TV show. Wow. It touched you. Yes. Reporter: But you did such a beautiful thing. Why does it touch you so much? Because I am a mom. And I know what it is to be pregnant. And somebody tell you that you are out of shape -- she's pregnant. I'm glad it's just a show. I'm like, he is so mean. Reporter: And your message to women who undergo that kind of pressure? Don't let men like that bully you. They don't care about you. People should say something because that wasn't right. Coming up --
This transcript has been automatically generated and may not be 100% accurate.