Boyfriend saying that I would be attractive if I gained 30 more pounds

So I just gave birth on April 30, less than two weeks ago. And my boyfriend told me today that he thinks of that I would be attractive if I gained 30 more pounds. I gave birth less than two weeks ago, and I just feel disgusting in my body right now. So to hear him say that to me literally broke my heart. He then proceeds to tell me to ask anyone because he doesn’t think he said anything offensive to me. And that I’m overreacting. When he first met me I was about 98 to 102 pounds.. I worked for years to get myself to be around 130 pounds now. After I gave birth I weigh 146 pounds now. He knows how low my self-esteem is.. and it just crushed me to hear him tell me this. What do you guys think am I over reacting?