I've been pumping since Thursday, had babes Monday. He latched on immediately and then won't again. I've been getting about 3-4 ounces from each breast until this last pump. I got 4 from the left and 3 from the right. I still feel there's some in the right one but it wouldn't come out even with massaging it. Any tips or idea why the sudden change? I'm afraid of it being clogged or just not producing as much. This happened with my last baby and then I dried up!