I have a teacher friend who has a similar dilemma as the one you're currently facing. She's much older than I am, and has gone through a few phases of her life while I watched and learnt. Like you, she waited to have kids and progressed fast up the leadership track in school and now holds a managerial role in a reputable school. Her goals were clear from the start: career-first. But in a recent meetup with her she did coax me not to be as 'silly' as her and always find a balance (guess there's a reason why the term work-life-balance exists). She's probably way past the age of having a kid at this point in her life and she has accepted that fact, but struggles/regrets a little. Back then, if she had kids, they would have grown up by now while she would have also meandered her way to the top (more stress and hard work and maybe not as high a position as now) but it's all a give and take kind of situation. I guess if you do make a choice to follow your goals (kids or career etc.) then stick with it for the long run. Jia you!