Congrats!! Mine is 15 months old, and I can’t say I beemind anything particularly parent-y (for a while I beeminded the vitamin D drops, but it turns out those probably don’t do anything so can’t recommend that one). As far as 2) goes, however, I DEFINITELY lowered my standards. A lot. I also derail a lot more.
You’ll have to figure out how you want to judge derails from things like “went to put the baby to bed, fell asleep too”, or “everyone’s fine but we spent the evening in the ER” or “got nothing done because someone decided to scream inconsolably from 10pm to 2am” (or, in the short term and depending on how the childbearing partner is handling pregnancy, “got nothing done because I was so nauseous I couldn’t stand up”). Basically, figure out how to structure your goals to account for a LOT less control over your life and a LOT more unplanned emergencies.
Fortunately, I have mental health issues that meant I had to structure my goals as such before I had a kid, so my advice is: structure your goals so that doing the bare minimum to not derail is SUPER EASY. No, easier than that.
For example, my anki (flashcard) goal is 10 cards a day. If I get started and it’s not midnight, I often do a lot more than 10 cards in a sitting! But if it’s 1:20am and I just want to die/sleep, I can do 10 cards, check off the goal, and it’s done.
For a second example, my “primary” beeminder driver is a “do everything on my daily will-do list”, which sounds scary, except I define “do” as “touch”, so if one task is “write an email”, it TOTALLY counts to open up a blank email and enter the send-to email address and save it. Again, this means that even a to-do list of 10 things takes me maybe half an hour, tops, to touch everything sufficiently to mark it done for the day. I also have some daily goals that I am allowed to “punt” on, but not twice in a row (so I can check off “journaling” as done, even when I haven’t done it, as long as I’ve done it yesterday, and will make it up tomorrow). (Why yes, this backfires when tomorrow is even worse than today!)
Ideally, worst-case, you want all your beeminder goals (except possibly work-work related ones, which you will be doing away from the entropic force of Baby) to not derail with an hour or less of effort total, on your worst days, because on your worst days, that hour will be hard enough to find.
Congratulations again, and best of luck. It’s an exciting adventure, and like all exciting adventures, it’s a lot of work!