I there any disadvantages using breast pump? also please explain how to store milk for later use?

A. hi no , there isn't. but as direct breastfeeding provides comfort and security to a child ,it would be best to offer direct breastfeeding. but if it is not possible then you can use any good brand breastpump. you can store breastmilk up to 4 hours at room temperature. and if you keep it in fridge you can store it up to 2 or 3 days but please use stainless steel container for storage