I got the twins question along with a 3 minute spiel about how HUGE I am and she can't believe I still have almost 3 months left and I am going to have a gigantic baby. I was so taken aback that I couldn't think of a good response in the moment.
I think it would be fun to come up with a list of comebacks that we can use whenever someone gives us their univited opinion.
Now that I've had the chance to think about it, here's mine:
"I was worried about that too, but my midwife assured me it is normal for that to happen when you are growing another human inside you."
Re: s/o Twins question
I don't believe in cute comebacks. If you feel like someone is being rude to you, then say so.
Honestly, I don't see why people get so bent out of shape about what people say. But, if I did feel upset I would tell people it upset me.
We'll miss you sweet Debbie Girl (4.21.12) and sweet Cindy Girl (8.9.12)

Agreed. When I got the twin question, I didn't feel bad about myself; I just thought the woman was an ignorant douche. I actually felt bad for her being so stupid.
A well placed "wow" or "what an inappropiate thing to comment about" works wonders.
BFP #3 via cancelled IUI ~ C (2lb 3oz; HELLP) 5/16/11
BFP #4 via the natural (free!) way ~ E (8lb 11oz) 9/13/12