Formula Samples?

Melissa • First Glow baby in December 2016, just found out I'm pregnant again and due in March 2019.

So I signed up for every formula sample available online. I plan on formula feeding from the get go. Anyways, it's been well over a month and haven't received any yet. Do they wait until closer to due date? I didn't sign up for any with my first, but after she almost starved to death, I'm not risking it again.