Pumping before birth

Tiffany • Abby came early emergency c-section. 3/3/17💕 Mommy & daddy are so in love! RIP to my fiancé. 5/21/17 gone way too soon
I'm due 3/15 but trying to figure out if I could start pumping before she comes. I read the colostrum comes back when she is born so that wouldn't be an issue. If I could start doing it to prepare I'd like to. Has anyone done it before baby came?