I am 30 and someone I am dating asked me about children and now I am having a crisis

I am a 30 year old woman with pcos. I was on a third date with someone who's 34 and he brought up children and said he wanted them. I was immediately shocked. I somehow forgot that that's a normal question for people dating in my age bracket. And I almost told him I was child free. I have been consuming child free content and checking out the regretful parents sub and other advocates of child free movement. I dont know if it is logical to find someone who does not want kids. That's fine. I am okay with being single too. But what I am scared of is I will get old and regret never being a mother and having a family. Paradoxically I am scared I will let a man pressure me into children and be a terrible neglectful mother cause I am mentally ill and on medication. I dont really know. How do people make these choices????