Frustrated

I have a question for the world: Why is it that if you are a woman of child-bearing age and newly married, everyone and their sister thinks they have a right to discuss your baby-making plans? 

(source)

It annoys the shit out of me.  I feel like pregnancy is the most intimate decision a couple makes together.  Why do people feel it's their business to know these things?  Maybe Matt and I don't want to have kids (we do).  Maybe one of us can't have kids (as far as we know, we can).  Sometimes I just want to tell people we can't, just to make them feel bad.  But I'm superstitious and don't want to jinx us.  Nor do I want to make light of that situation, because I would imagine that it's absolutely heartbreaking.  But I've been tempted just to make people feel really terrible about putting me in that position.

I kind of lost it the other day.  On facebook, of all things.  Yeah, I was that girl  *sheepishly raises hand*  I posted something about feeling pukey.  Immediately, I had comments of "Are you pregnant?" and "What are you doing in 9 months?"  I initially replied "Not popping out a kid."  But people kept pushing.  And Matt's cousin, who is always overly-involved in everything everyone in the family is doing, asked me "Why not?"  So I finally posted, "How about this?  I'll start thinking about getting pregnant when everyone stops asking me when I'm getting pregnant.  At this rate, I'll be pregnant when I'm 70.  But don't worry, I'll be sure to discuss it with all of you, openly and on facebook, before I discuss it with my husband."  Not a word since. 

It really grates my nerves that people think they can just openly discuss my marriage and sex life like that.  So I'm trying to come up with a firm, but not mean, way of saying "F off."  Thoughts?