If I really want marriage and children should I heavily focus on it and pursue it or should I let go of the desire and let it happen on it's own time?

I have always wanted marriage and children. But it has not happened for me yet. Sometimes I find myself thinking about it a lot. All my friends are in relationships and have kids. Sometimes it makes me feel like I'm behind and running out of time. I've dated in the past but the guys weren't interested in marriage or even getting me pregnant. I notice that people who don't want kids or marriage seem to be the ones that guys get pregnant or they end up in relationships. I am more of a old fashion kind of woman when it comes to relationships and I've always treated the guys that I dated well. Sometimes I wonder what I'm doing wrong. I wonder if I'm too loving or too kind. Maybe I come off too desperate? I'm currently dating someone new and I want marriage and I want to have children with him but I don't want to talk about it too much and scare him away. They say things happen when you stop looking for them. Should I just go with the flow and forget about how I want marriage and kids. Should I just let go of my fear of running out of time? Should I never bring up these things to the new guy that I'm dating?

If I really want marriage and children should I heavily focus on it and pursue it or should I let go of the desire and let it happen on it's own time?
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