My baby is 18 weeks and it is such a struggle to get her to take her bottle she was feeling really well taking 7oz bottle now she goes through periods which is normally every 4 weeks of only taking 3 sometimes 4 oz's and then fights the bottle and gets so cross! I'm so worried that she isn't gettin enough! She done it last week and had got back onto it again but is at the same again the last few days! Has anyone ever had this with there little ones! I'm a 1st time mum!