call your insurance company, mine actually reached out to me because of the confirmed test, the rep told me that once I was 8 months to request a breast pump and my obgyn will write a prescription and they will either shipped it to me or I can go to their pharmacy to get it. It's a madela pump in style advance double pump

u can also get it thru wic

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how far in advance do you look into it

You can contact your insurance company and see how they do it. Mine gave me a few websites that they work with. I used edgepark.com and got my pump in 2 days

Or edge Park

I called my insurance company and they gave me a website with a purchase code and I picked out the one I wanted and they shipped it to me.