When is a good time to start shopping?

I'll be out my first Trimester next week 🙈☺️☺️☺️ I figured it'd be a good time to start shopping for a few simple stuff, I'd really like to buy a crib now , but I don't want to be overrated and buy stuff to early but I'm just so excited. FTM lol , any advice please. I also don't plan on having a baby shower because I don't have that much friends and my fiancé doesn't like my family very well.