Boobs don’t hurt??

J

I decided I wanted to do combo feeding for my 5 week old bc I was thinking about stopping breast feeding altogether and wanted to see how it would go giving him a bottle with formula (yes I know my supply will go down and I hate pumping so I’m not).

However, sometimes I give him a bottle and then go hours without breastfeeding him and my boobs DONT hurt at all. Does that mean my supply is already going down? When I nurse him, he gets enough and is fine.