Fasting whilst breastfeeding is valid
Question

Does breast feeding my newborn break my fast? In other words, if I am breast feed my baby during the time we are fasting, does my fast get broken?.
Praise be to Allah.Breastfeeding is not one of the things that invalidate the fast. The fuqaha’ are agreed that a woman who is breastfeeding is permitted to fast. 
And Allaah knows best.