Friend with kids

I have a friend who has two beautiful little boys and is a few months older than me and she didn't try to get pregnant both were accidents. I've tried talking to her about struggling to get pregnant and she gets annoyed and says "it'll happen". I don't think she understands how heart breaking it is to struggle with this. She says I need to be "more stable" but my fiancé and I both have full time jobs, our own two bedroom house, our own car and health insurance, and we will be married when/if we have a child. She does not work and her kids have two different dads. Both of which she wasn't married to when they were born and her first she was dating a drug dealer and doing hard drugs but, she thinks I need to wait until I'm "more stable"? Sorry just want to rant a little because it's really starting to piss me off