Hi nidhi 
New born baby losses weight in first week... Don't worry next week onwards his weight will increase. 
Feed baby in 2 hour interval if baby doesn't wke up tickle behind the ear and foot... Feeding is very much important even it's night time.. 
Tc

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Hi 
Initialy they lose weight. They gradually start gaining weight after two weeks. Relax don't worry. Feed for twenty minutes ten minutes each side of the breast, at an interval of two hours, wake the baby up and feed. Until she gains four kg. This has to be done. If the baby's pee count is six to seven times a day it's a sign of well fed baby. Tc

My baby is 12 days ols. Weight at birth was 2.76 and after a week it was 2.52.

Even now she feeds only wen she wakes up which is very little. 

Should i be concerned or check her weight