Anonymous wrote:OP here- again this is how little I know about babies but our plan would be for me to take off 8-12 weeks (one pro of doing it earlier and in school is better maternity leave actually then in residency) and for husband to also take 8 weeks. By 16-20 weeks would baby be sleeping most of the night or should we plan for no sleep the first year at all. I agree with those saying not to wait- it stinks that I decided so late on this career path as I am stuck with having to have a child at times that are all non-ideal but I can't really wait.
Oh, and better maternity leave in school? That really seals the deal.
Re: baby sleep, these are good overviews:
https://www.babysleepscience.com/single-post/2014/09/03/Newborns-and-Sleep-%E2%80%93-The-First-Six-Weeks
https://www.babysleepscience.com/single-post/2017/07/18/Newborns-and-Sleep-Part-2-Weeks-7-16
A great science based site in general.
Infant sleep isn't linear. If your baby eats really well, they might be getting eight hour stretches with one wake up as early as 7-8 weeks. I suggest eliminating dairy, eggs, and maybe even wheat until 4 months if you plan to breastfeed and there are any food allergies in your family. 6-8 weeks of age can be a colicky time if something in your milk doesn't agree. I went through that with my first and had to eliminate dairy and wheat. With my second I eliminated that from the beginning and there were no issues, our baby hardly ever cried.
Usually around 4 months there is the 4 month sleep regression. Their sleep "improves" up until that point, then their sleep architecture changes permanently and they begin waking on a newborn schedule again. Months 4-5 can be tough but most parents power through and then sleep train. I think doctors agree that months 5-7 are a fairly good time to begin allowing a baby to learn to self-soothe. If you do that and all goes well, you'll have solid 12 hour chunks of sleep until the next sleep regression . . . 8-10 months. That one sucks. And many people retrain at that point.
Hope this helps!