How should I deal with this?

[grub17]

hi arimeh,
just my two bob, don't go way out of your way to not talk about kids because it will be obvious and just as difficult for her. I'm happy to hear how my friend's little ones are going and then move the conversation onto other topics. I also respect that my friends also have their own problems which are no less significant than mine and being a good friend, I want to share the burden of those issues. So be a good friend but she needs to come to the party at some stage as well. but my relationships have remained strong, so it's a bit different for you.

I think you just need to let her sort her issues out and let her know you are there - an nonjudgemental, supportive, honest friend.

Being childless when everyone else is popping them out at a rate of knots is truly something noone can appreciate unless you've been there. So the fact that you were even considerate enough to ask for feedback speaks volumes on what a kind, thoughtful friend you are. Good luck. I hope it all goes well.

that's my two bob, and as sunflowagirl said - it is just my opinion and not meant to offend anyone.