A friend of mine used the Hegen PCTO pump and said it was comfortable and quiet enough for night sessions, which she really appreciated. Since you are already sold on the bottles, getting the whole set together does make sense because the parts are all compatible, and the 11.11 price is a decent saving worth considering. It is not too early to buy, especially since newborn feeding gear is something you will need from day one, so having it ready before your EDD in May gives you peace of mind.