Absolutely not. First off, immortality is one of the worst things I can imagine and no sum of human knowledge (if that's really even possible after 200 or even 100 years) or experience is worth the torture of a life with no end. Ever. That plus the eventual disconnect (one way or another) with your loved ones, then your generation, then humanity itself, followed by insanity.
Second off, I'm not a fan of children now, but I know I will want kids eventually. Hell, I can already recognize that I'm slowly changing my mind about how I feel about children. Most of the people responding yes to this I imagine are going to end up changing their minds down the road, no matter how much they might think that won't happen.
I think a more interesting question would be trading the ability of childbearing for invincibility with a natural lifespan. I still wouldn't trade my fertility even in that case, but to me it's more appealing. I'll embrace death when my time comes, but in the mean time I want to experience life to it's greatest natural extent and not have to worry about a painful or violent death.