My baby is 5weeks old, i breastfeed and have to be away from her tomorrow evening for the first time for 4 hours, leaving her with Granny. I planned to express but have found i wont be able to express enough in time, it's taken me all day to express just 100mls, which will only do for one feed (she's 12lbs). I've always hated the idea of formula, but am considering buying some organic formula tomorrow. I feel bit guilty about doing this.. Do you think it will be ok as a one off? Has anyone tried Hippo organic, or can recommend any others? Thanks x