My DD was 5 weeks old yesterday. I took her to baby clinic on Monday to be weighed to find out she had only put on 1oz. She weighed 7lb at birth then went down to 6lb 7oz and on monday weighed 7lb 14oz. We had a big weight gain of 8ozs between 2 and 3 weeks. I told the HV she has a last feed around 10.30 then can sleep through from anywhere between 3-5.30 am. The HV suggested that I wake her at around 2am to feed but I am feeding on demand and surely waking her for a feed isnt demand feeding she wouldnt sleep if she was hungry would she??? Should I be worried about this rate of weight gain?