What to say?

I have been married for over 8 years and I don't have a child. As I grow up, I never wanted to have a child.So my friends and relatives always ask me why I don't have a child. I used to tell them that I don't want to have a child. That is true but later my husband and I agreed to have a child and then we stopped using contraception and tried to have a child. Then after a year or two trials, we visited a doctor. That's how we knew that we can't have a child.

The doctor told my husband that his sperm count is zero.

I come from a community that believe women should get married at a certain age and should have children.

I don't want to tell the truth because

1. I believe that they can not do anything for my situation

2. I don't want to be perceived as a disabled woman because infertility is considered as disability.

On the other hand my husband would like to tell to people because he believes that he feels connected if he could share his challenges for his friends and family.

My question is that how to respond whenever someone ask me why I don't have a child without lie ing and without telling the truth?

What would be your response?