My baby is 6 months old and I am breastfeeding. She used sleep for 6-7hrs without feeding from 3 months. But since from 6 months she is waking every 3-4hrs during the night and she goes back to sleep only if I feed her.. otherwise she will be crying.. So totally she takes about 3 feeding during the night. How to avoid this? or will it get change automatically? Is it okay to have 3 feedings during the night at 6months age?