I'm not sure I have any regrets either. Things just played out the way they did. I transitioned when I was ready and to deny my life pre-transition would be to deny my life today because I wouldn't be here if it wasn't for that.
I guess not having children is one thing I find myself thinking about. It's not just the inability to have biological children, it's that I am entering my 40's and it's starting to be too late to have children. My window is closing. I would love to be a mom. And although I wouldn't always be the best mom, I know that I would give lots of love to my children and would learn as I go. It's still possible, but there are no prospects on the horizon at this time.