Now that you have a child, you are worried for your child's safety as well as your own life.
You do not want to leave your child without his mother.
This is very normal. You now have an understanding of how your own parents felt, and I bet you now realize how much danger you were in all of those times.
You need to come to peace in your heart and mind about all of this. An accident could happen at any moment to any of us. We have to do our best to make god choices, but we cannot let the "what if's?" take over our lives.
If this worry, fear begins to hinder your normal activity, please speak with your doctor. As women our hormones go wacko sometimes, the chemicals in our brains can also become unbalanced as we mature and go through pregnancies. We must stay aware, so we can be mentally healthy, to be he best we can be.