Reddit mentions of Baby Bargains (2018): Secrets to Saving 20% to 50% on baby cribs, car seats, strollers, high chairs and much, much more! 2018 update!

Find out what foods you need to avoid while pregnant (including how much caffeine is safe, what herbal teas are off limits, and which fish have high levels of mercury), and what drugs you should not be taking (e.g. ibuprofen is typically not baby friendly). There are different schools of thought around all of this and a lot more.

As far as books, "What to Expect When You're Expecting" is a best seller and not a bad place to start. https://www.amazon.com/What-Expect-When-Youre-Expecting/dp/0761187480/ref=sr_1_2?ie=UTF8&qid=1525410573&sr=8-2&keywords=maternity+book

Once you get to the buying stuff stage the book "Baby Bargains" is pretty good. https://www.amazon.com/Baby-Bargains-Secrets-Saving-strollers/dp/188939257X/ref=sr_1_1?ie=UTF8&qid=1525410646&sr=8-1&keywords=baby+bargains+book+2018

If you're totally lost, you can always reach out and connect with a Doula (even early in pregnancy) - though this can be pricey. Doulas have a wealth of knowledge. The hospital that you will deliver at also probably has resources and links set up on their website.