New Subscriber - which book am I getting?

Hello everyone! I just registered for Illumicrate! I applied March 5th and got accepted March 12th (which is so incredibly fast and I’m so shocked & excited!) I ordered the book only on March 12th but couldn’t figure out on the website if I was going to receive the March book or the April book. Has anyone experienced getting accepted around this time and what book month I should expect to receive? I’m also in the US if that makes a difference.