morning sickness

I'm nerves as hell right now. I lost my brother October 16, and found out I was pregnant six days after the homicide. I was stressed during the death, but when I found out I was pregnant.. I have been trying not to stress. However, I've been reading these magazine and looking at YouTube videos. Well, research has shown morning sickness is a sign of a healthy pregnancy.. I haven't had any.. can a mother make me feel better about this situation ??