I'm late thirties and actually I wish people talked more about how this can be such a high pressured time for women.
If you do want to have a partner, and a child, there's this weird period of intensity where it must happen - its easy enough to be casual and focus on career and friends and casual dating till you're early thirties, but then the world and its mother needs to point out that you have a ten year window that's slowly closing. And it is ok to want these things, and it is frustrating that so many men get a free pass as if they leave it 'too late' to have all this with a peer they can just hook up with a woman from a younger generation and it will all be fine.
I have a husband, and a child, and I in no way look down upon friends who are single but. if I"m honest, I do sometimes wonder where I don't know the situation and people don't have children if its their choice. Weirdly I don't feel that way about partners, as you can meet and have a happy relationship at any age. But its hard if you want kids and can't have them, at one point I thought I'd be in that situation myself so while I know many people aren't it is something in my mind.
I have a friend, and a cousin, who are late thirties, single, and have always wanted kids, and I do feel almost frustrated on their behalf that the fact they may not meet the right person in the next 3-5 years may stop them having kids. On the other hand, I have a friend the same age who has decided she may want a partner one day but definitely doesn't want a child, and another who would like a relationship and if timing works out wouldn't mind a child but won't be heartbroken if it doesn't happen, and they both have incredibly great lives and I can't imagine how or why anyone would feel sorry for them.
And agree with other posters: many, many men of my acquaintance where I think their OHs may be better off single, but again, not for me to judge.