Me [28 M] with my wife [28 F] 6 years, she thinks I'm going to leave her because she's infertile.

Pretty much as the title says but I'll give additional advice.

My wife [marry] and I have been together for 6 amazing years now and it couldn't be better. For a few years we've been trying for kids, at first it was fun but she started to get really worried.

We went to the doctor, and found out she was infertile and there wasn't even a chance for a child, she was really sad and cried a lot but we pulled through stronger somehow.

Yesterday, she was in our room crying and I asked her what was wrong. She said she's scared I'm going to leave her for a woman who can have kids, she said she wasn't a real woman and continued to cry.

I held her until she feel a sleep but I don't know why she would think like that. I'd never leave her, I love her very much and don't know what to do she's been very down on herself lately.

I want to help her and show her I love her.

tl;dr: my wife thinks I'm going to leave her because she can't have kids.