Which pump to get?

Jessica • Momma of an angel Ashton Violet Long January 4,2018 your wings were ready, but my heart was not❤️👼 2 brindle babies🐾🐶 rainbow baby due in January🌈❤️🤰🏼

So I plan on exclusively breasting when my little one comes, he has a cleft lip and palate and I will unfortunately not be able to breast feed so I’m wondering which pump is the best option. I really don’t want to spend 400 dollars on a pump and then my supply not be good but I also don’t want a cheap 40 pump that doesn’t do anything. Thank you in advance😊