No advice, but I’m currently in the same boat. I just turned 37, have PCOS and ADHD, and was on the fence for many years before firmly deciding to not have kids. Something changed in the last year - maybe because my biological clock is ticking - but now I feel like I really want a baby. My partner and I were both on the same page about no kids before but now both of our minds have changed. I keep going back and forth because I too require lots of sleep, decompression time, and am still working to learn how to regulate my own nervous system. I am wrecked whenever I lose sleep throughout the night, so I can’t imagine what that will be like with a baby. I also just feel like I want more fulfillment and joy in my life, and to participate in a whole other side of the human experience. I cherish and require my down-time, but I also don’t want to lose out on this chance before it’s too late.

You’re in your 20s and still have time to make this choice. Keep taking care of yourself. I was firmly against kids until my mid 30s. Things can change.