People commenting about weight?

What do you say? I hate that being pregnant seems to make people think it’s okay to comment on your weight. I don’t mind if they comment on my stomach but lately some women in my family have started commenting on my overall weight gain. Shaming me when they see me eating sweets or commenting about how big other parts of my body have gotten. I’ve tried to be really good about my weight gain but the last few weeks my cravings have been out of control and I’m gaining a little more rapidly. I’ve gained 20 pounds overall (120 to 140) at 34 weeks which I didn’t think was that bad. But everyone is making me feel so self conscious and I never know what to say. I just sit there. Why do people think this is okay? I’m ashamed to eat in front of anyone now! What do you guys do to deal with this?