Preparation tips for soon-to-be (birthing) parents in academia?

In our newest "how can we help you?" thread, a reader asks:

I'm starting a permanent teaching position this Fall (3/3 load, small classes of 20-30 students, no research obligations - though it seems most people in this position do publish a little), and will have the equivalent of a "tenure review" after 3 years. My spouse and I also hope to grow our family in this window and I'm the birthing parent. (FWIW: after a year of employment I'll be eligible for a semester of parental leave, and the department I am joining has a reputation for being a supportive and caring environment.)

Do folks have advice for how to best prepare for this? Ways to build excellent courses that are dynamic and engaging (i.e. will make material for an impressive teaching portfolio and get stellar reviews from both students and supervisors), but that also can adjust for pregnancy-related interruptions and the collateral damage of postpartum sleep deprivation + hormones? I'm also open to advice about more general "life stuff" like time/household management, making the transition from 1 to 2 kids, etc. (FWIW: My spouse has a hybrid work schedule, we have a toddler who is in full-time daycare, a cleaning service 2x/month, and Instacart. We have no family nearby.)

My first pregnancy was physically very rough, but I was not teaching at the time. I also had postpartum "baby brain" for about a year - honestly, this is the thing that worries me the most. I LOVE teaching and am SO excited to start the new position, and a I want to do a stellar job. At the same time, I am not going to put my personal life on hold for my career. But (insofar as it's possible!) I want to be smart about this.

There have been a few good advice threads on pregnancy + parenting on this forum before, which I want to collect here for those searching for this kind of insight in the future:

https://philosopherscocoon.typepad.com/blog/2020/03/tips-for-professors-with-children.html

https://philosopherscocoon.typepad.com/blog/2017/02/grad-school-survival-guide-part-4-having-children-in-graduate-school-as-a-woman.html?cid=6a014e89cbe0fd970d01b8d2688f7c970c#comment-6a014e89cbe0fd970d01b8d2688f7c970c

https://philosopherscocoon.typepad.com/blog/2017/01/grad-school-survival-guide-part-3-having-children-in-grad-school.html?cid=6a014e89cbe0fd970d01bb096eb022970d#comment-6a014e89cbe0fd970d01bb096eb022970d

Thanks to Marcus (as always!) for cultivating the supportive environment found here on the Cocoon. It has helped me think through a lot of my choices and strategies over the years, and has made me feel less alone.

Thanks so much to this for the very kind words! Do any readers have any tips for how expectant parents--particularly birthing parents like the OP who may be starting a permanent full-time job--can best prepare, personally and professionally, for this exciting next step in their lives?