I am a bit confused why Rick held in the secret for so long though--even if he *did* want "confirmation" that what Jenner was saying was the truth about them all having the virus. Why would he be so adamant that Lori keep the baby when aborting it might of been the most compassionate thing? (NOTE: i am NOT trying to get into a debate about abortion and shit, so no accusations about political baiting PLEASE. This is JUST in the context of the show!!!) After seeing what children zombies look like (Sophia, that girl with the teddy bear), why would he want to curse that on his own child? Just doesn't make a lot of sense to me. Maybe it's a man ego thing--maybe it's because he wasn't sure. But who in their right mind would want to bring more zombies-to-be into the world? :-/
Hey, Rigo. I am a newbie, too, so it's good to know that it's not just old-timers in here LOL.
IMO, re: the insistence that he and Lori go ahead and have the baby in a post-ZA world, even with the knowledge of all of them having the virus, maybe what Rick was holding onto was the optimistic hope of, and for, humanity and the perpetuation of it. In addition to Maggie and Glen, Rick strikes me as one of the show's glass-half-full types, and mostly tries to see the upside in whatever circumstances their new life throws at them, no matter how horrible. He's the one that, along with Daryl, holds out hope that Sophia's alive and that the group can find her, even when his best friend tries convincing him to give it up. WRT the baby, maybe he feels that a cure will be found in Carl's and the child's lifetime, and/or it is possible that some people are immune to the virus.
Even if neither of those two possibilities were the case, perhaps Rick feels that life must go on, and that human beings still need to build communities, love one another, and perpetuate the species. The horrible effects of the disease manifest upon a human's natural death, after all. As Rick even told Carl in the father/son "barn chat," their biggest goal in the new world would be to stay alive--and keep one another alive--as long as possible. I remember one of the Walking Dead Podcasts' hosts mentioned that that Jenner's information really didn't change things for living human beings much--maybe burial rituals had to be changed (the dead would either need to be decapitated or cremated completely, for example). Just another way for human beings to adapt from an evolutionary (or devolutionary lol) standpoint.
Just a thought. YMMV. (*gives fellow newbie fistbump*)