How To Keep The Breast Size You Got While Breastfeeding?

I am currently a breastfeeding mother to a month old and noticed an increase in my breast size about two weeks ago. My breast are a lot bigger than I was pregnant & before pregnancy and would like to keep it this size.
Is this possible? How can I keep them the same size they are now if I stop breastfeeding?

How Long Do You Keep Attempting Breastfeeding ?

This is day four since birth and baby could well eat his shirt.
When baby latches on, it’s only briefly, till he drifts off to sleep.
Is some combination of formula and breastfeeding appropriate.?
Diapers are coming, albeit slow. Mom’s nervous;
Dad’s a wreck.

How Long Does Baby Formula Keep For, Should We Start Buying It Now?

Should you stock up on baby formula before the birth or wait til after?
This is a serious question so breastfeeding nazi’s please refrain from lecturing, thankyou.