My 45 days old baby boy is always crying to suck and fall asleep on my breast. He doesn't want to remove his mouth even though he slept. If I remove his mouth, he starts crying and asking doe milk, but he doesn't drink milk for his need, for the past one week he just wants to suck for a min and want to sleep. How can I change his habit? Is there any possible way to make him stomach full and then fall asleep?