overthinking or serious

So i havent really felt too much movement but i do feel tiny kicks when i place my hand on my belly but my baby usually kicks crazy and moves crazy. I dont want to over react but i do get nervous since this is my rainbow baby after a miscarriage? I dont want to call the office since they take to long to call back should i just go in to the ER and find out or just try different things to make baby move? I am 31 Weeks