No. And it's not because I'm "selfish". Kids are the only thing you can be called selfish for NOT having. Makes no sense.
I think it's pretty selfish to reproduce in a world where millions of kids who already exist need loving homes. IVF and other treatments are even more absurd. I understand the desire to pass on your genetics, but at what cost? If you want to do something truly selfless, adopt. Be a foster parent. Mentor. Pick up a pet from the local shelter. But bringing another baby into a vastly over-populated world is the apex of selfishness.
If you don't have the emotional and financial means to give a child the life they deserve, please don't have one. "My biological clock is ticking" is no reason to have a baby.
(Not judging any of you parents here, just stating the case from a child-free perspective. People--particularly women--get a lot of crap for not wanting kids, and it sucks.)