Pregnancy is full of “weird pains”! Keep in mind that when you register at Babies R Us, they often offer you discounts down the line on things on your registry that weren’t yet bought. Also you get on their mailing list for coupons — and a few times a year they send out a booklet with coupons on the big ticket items like car seats and cribs, so registering sooner will give you more time to potentially get those coupons before you make your purchase. You can always go in later and change things that haven’t been bought yet.
And relax!!! We have the minhag not to prepare before the birth, and we don’t even take the car seat out of storage in adavance, and B”H we managed fine. There are very few things you NEED right away. There are a lot of online sites that will send you weekly updates as to what the baby is doing that week. I loved watching my baby change from an orange to a tissue box to a melon. . .you get the idea! If you plan on giving formula you can sign up with all the major formula companies and give them your due date. They send tons of coupons and free samples. There are also a buch of free baby magazines you can sign up for subscriptions (American Baby, Baby Talk), which are especially fun if you’re a first timer!
Bshaah Tova, feel good, and good luck!