Is there a buying time line somewhere?

KDee • Tried for almost 5 years, with every test and almost every fertility procedure, until I finally started telling the doctors which tests to do. Hoping this rainbow baby makes it and stays!

Has anyone ever seen a what to buy when kind of time line for baby and maternity stuff? It'd be way helpful to have one. Seems like there's so much we can't buy until we find out about the gender, but I don't want to be rushing last seccond.

If you haven't heard of/seen one, what would you suggest as a good buying guide? What can we buy early? What's worth waiting to get?