Exclusively breastfeeding vs exclusive pumping

Niecy β€’ FTM...My heart and joy arrived January 21st, 2016; Layla Eliana πŸ‘ΆπŸ½πŸ˜πŸŽ€πŸ˜˜
I'm 22 weeks pregnant with a little girl and I am a FTM. I'm also debating if I'm actually going to nurse or just pump and feed. I've never really been around breastfeeding, seeing as how my immediate family has always done formula. What's changing my mind is my little sister just had her baby on Aug 21st and is breastfeeding my nephew. I've saw the problems she had in the beginning with getting him to latch and how exhausted she is because she is the only one who can feed him. I also want my child's father to be able to feed my daughter when she's still younger and not when she's already a couple months old. So my question to you ladies is, have any of you pumped and stored immediately and not given the boob?
Thanks in advance.