This is my second day back at work, my son is 6.5 weeks old. I am pumping twice a day at work, once in the morning and once in the afternoon. I use an Ameda Purely Yours. At this mornings pumping session, my right breast filled the 4 oz bottle and would have overflowed it if I hadn't stopped pumping. Meanwhile, the left breast pumped about 3 oz. I didn't want to stop pumping while the milk was still flowing, but had no choice because I didn't have any other bottles. I don't know if this will keep happening, but should I keep pumping until the milk stops? How many minutes will this normally take? I pumped this morning for 10 minutes. I am so afraid of my milk supply dwindling down to nothing!