Breast Pumps

I have every intention on breastfeeding as long as my body will provide. However, there's no way I'm going to be able to afford a pump and supplies at cost! I was told my insurance provider may assist? What do I need to ask them when I call? I hate calling someone and sounding like an idiot because I'm uneducated on a certain subject. Some people can be so inconsiderate, even given that I've never had a baby before and have no reason to know about breast pumps and pricing. 🙄 Any advice is appreciated!