Sudden urge to have children

I’m a 31F I’ve been single for about a year. My last relationship was my most serious relationship. We discussed marriage and children. Unfortunately things did not work out between us. It was very hard for me as for the first time I felt the closest to getting married and seeing a future with someone. I’ve been on dates since my break up but none have led to a relationship. While I would not say I’m desperate for a relationship, but since turning 30 I have a sudden urge to have kids. While I know I could go out and get pregnant by any guy, that’s not what I want nor am I trying to trick anyone. I understand that people don’t always work out but I’d like to experience marriage and children at least once in my life. Has anyone ever been in my position?