Im in a similar boat, although my baby doesn't like nursing anymore (prefers bottles now because it's easier for her) so I was pumping at night before bed. But my supply has really dropped over the last month or so, to the point where I was producing a measly 3 or 4 oz after pumping for an hour..she gets mostly formula now and is thriving on it. I talked with my husband who is fully supportive of me stopping whenever I want, but I cant help but feel sad that I couldn't make it to 6 months giving her some breastmilk. I've tried upping my supply but it doesn't seem to be working. In the end, we just have to remember that we've done the best we could for our girl and she's very happy and healthy eating formula - fed is best!