Please help me </3

Mary
I am so sad. So so sad, it seems like all the time. Sometimes I even feel angry. I find myself having little temper bursts and it's downright terrifying. I'm 16w4d and it seems to just have gotten worse. My fiance is amazing, but he doesn't quite handle emotion well. So I get these hormonal changes that he struggles with daily. But days like today when I wake up absolutely depressed and crying with no trigger or real reason, I keep it to myself because I don't know how he or anyone will react. I feel ashamed that I'm not overjoyed. Obviously I'm happy and I do want this baby more than anything, but the sadness and anger makes me question everything, even so far as my own life. I don't know what to do. I eat healthy, I exercise..I refuse to take medications (just a personal choice, no judgment against anyone with pharmaceutical help). Is it just a sign that I'm not ready? That I'm not fit to be a mother? I'm absolutely terrified, this can't be normal. ): am I alone? ):