My childhood in the 90's was very similar to how you describe OP, although we did go abroad a couple of times. I truly think little kids are just as happy with trips to the park, McDonald's, picnics, local free and cheaper attractions etc as with the fancier stuff.
I know what you mean about it appearing that everyone moves into their house and does loads of work straight away, we're chipping away at doing it up bit by bit as we can afford it and we're fairly comfortable but one of our neighbours spent nearly 6 months gutting their house and totally renovating it before they even moved one box in! That's totally out of our league but that's ok
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Don't worry about whether you can afford lots of stuff for your little one ❤️ you will be enough for them, especially in the first year or so. You are their whole world in the beginning. The best toys for babies I found were the cheapest- stacking cups, a rattle, Tomy squeaky eggs.
Also, you can get so much second hand from FB marketplace, nearly new sales and charity shops etc, we've had some lovely toys for next to nothing and intend to pass them on to charity for others to enjoy once our DD is finished with them. Places like the works, Poundland, B&M do great little craft bits and sticker books. Toddlers are on the whole happy with a bucket of soapy water and a few plastic toys to wash!
Sorry for the essay but hope it reassures you a bit. Congratulations on your pregnancy 