I'm a ftm, planning on breastfeeding and have the Spectra S2 pump. I'm curious which milk storage bags are most compatible with the pump or is it better to just pump into the little bottles that come with the pump and then pour it into the bags? Or should I just wait and see how much I actually use the pump? I'll be staying home so currently not planning on pumping a lot but would like to have some breast milk stored so it's there for when we do a date night or so dad can help with feedings. So many questions lol!