I'm going to be 18 weeks tomorrow. I'm such a worry wart. First time mom so I don't know what to look for. I feel as if I'm not pregnant anymore, I don't feel the baby I have felt little flutters which I don't know if that's the baby because this is my first time. I just always worry if the heart beat is still there or if my baby boy is okay! Any moms can give me advice?