Hi, my son is 15 months and most of the time has been a reasonable sleeper. All of a sudden the last 2 to 3 weeks he is waking 2 to 3 times a night and just screaming and screaming but when i go in he stops. I give him a few pats on the bum or stroke his hair saying sh sh sh to calm him down then wakl out and this could go on for an hr or more. I am 30 weeks pregnant and sooooo tired and this is draining me even more. I dont know what else to do? Can u pls give any suggestions as i really need this settled before baby comes.