Am I over-reacting?

How would you fee as a pregnant woman who's always struggled with their weight...? On thursday my Mum commented on how I'm 'filling out' now, I told my fiancé as it had upset me that she felt it was alright to make such a comment, only for him to call me a food hoover yesterday! When I mentioned it later in the day, he tried to brush it off like it was a joke, but it'd already upset me by then... Am I over-reacting, or would anyone else be upset too?