Okay. Now I have to do the fullblown time analysis. (don't know if I should include this, since it's not too detailed but- Spoiler Alert!)
Time A- canon timeline. Tempus does not kill Baby Clark, time goes on as normal.
Time B- AL timeline. Tempus does kill Baby Clark, resulting in the Clark-less time with Lois and her wayward memories of time A.
Time C- WC timeline(aka: the resolved AL timeline). Tempus kills baby Clark. Lois lives through AL timeline, with time A memories. NONE OF THIS ACTUALLY HAPPENS, even though it has. Because instead, AltClark arrives in Time B to try and change the outcome to more along the lines of Time A, back in 1993.
AltTime A- the Alt universe of canon. Which AltClark has now abandoned.
But actually Clark abandoned altTime A in 1997, so since it is only 1993 here, he has not "now" abandoned altTime A, he just will abandon it.
