My hubby worries too much....

I'm almost 17 weeks and every now and then my baby is pretty active. My hubby worries and is paranoid about everything. He says "why is  he so active?!?" I understand we've lost two babies and this pregnancy has been a breeze but it drives me crazy when he's so paranoid. It puts unneeded stress on me. I appreciate his concern but maybe he should read into things instead of assuming the worst always. I always tell him to read this or read that and he won't. Before I had my first child I read and learned all about babies and labor, etc.