When did you start looking for daycare and do you wish you had done it sooner?

I'm a reporter and about a year or so ago I interviewed a early childhood educator and mother of two who said you should start looking for child care before you even get pregnant.

I'm 4w4d so it seems craaaazy early to even be thinking about this yet, but I keep hearing her voice in the back of my mind.

Also, how do you get daycare recommendations when you're trying to keep things hush hush during the first trimester?! I'd love to ask people I know with small children but there's no one I'm close enough with to want to tell them this early.