I was 4 months short of 36 when my son was born, and have to say I felt really similar. I mean, sure there's things I havent done yet that I hope to do in the future, but I've had a career (and it didn't make me happy, I regard it as a job not a career now), I've travelled (there's always more places to go to but I look forward to going as a family now) and most importantly I've made a lot of mistakes and learnt a lot of lessons. 10 years ago I was a mess, and in no way capable of bringing another human being into the world and doing right by that person. I was single, depressed, miserable, I needed help and I didn't know how to ask. things got really awful around the time that I turned 30, but from there the only way was up, and I got through, put my life back together. met my husband when I was 32, we had a few rocky years but knew we'd stay together, and we planned our family. by this time I'd convinced myself that my unhealthy lifestyle for the previous 20 years would have taken so harsh a toll that I'd not be able to conceive, but I was wrong, and we did. I could not be more grateful nor more appreciative of everything. I feel like the luckiest person in the world for having my beautiful son, he lights up my life, and now we're to be blessed with another. it's astounding to me how things have changed. if I have any regrets it's that I wasn't ready for children or capable of being the sort of mother I hope to be when I was younger, just so if we decided we wanted more children we'd have time. but I know I am a much more patient and less selfish person now, so overall I am glad things worked out this way.
it's always going to be a challenge, no matter your age, but I think when you've waited and you wondered if it'd ever happen, you're more prepared to deal with the hard times and appreciative of *everything*, good and bad.