Starting to freak out

I'm 32 weeks pregnant and I don't know why but I just have a strong feeling that my baby won't make it to full term. Maybe I feel this way because I'm starting to get closer to my due date which isn't until Sept.4 and I'm starting to get anxiety or nervous for it??? My question is has anyone else been feeling like this or is there any helpful tips that will help put my mind at ease? I am a first time mom so maybe I am freaking out for no reason but still I would love to hear some helpful advice/ feedback