@jleightutt, I did see those at toys r us as well. I had a gift card and thought I'd make the most of it. I don't have a pump yet, I get one free through insurance, but they make you wait until baby is born to get it. I'll have to check into the lansinoh ones. Thank you so much!

Meaning, the medela bags will work fine. But I will say, I am not a fan of them... I've been a nanny for the past few years and worked daily with breast milk and I feel like the medela leaked easier. The lansinoh bags are the best ones I've used.

The bags, no... But I would double check the medela bottles and make sure they screw on to your breast pump just fine. If not, they may make an adapter. My tommee tippee bottles and bags(which have a lid unlike other bags) don't fit my medela pump but I found adapters for super cheap(like $4)