Mental Health Question

Dani
Okay, so I'm 4 weeks and I've noticed instead of being moody...I'm abnormally calm. 
Hear me out. 
I have PTSD that results in Anxiety and Depression, and makes me have angry bursts. I've gone to counseling and I have everything under control, but it still is there all the time. 
I was super worried about becoming pregnant because I was afraid I'd turn into a psycho mean lady. 
My wedding was this weekend, I stayed with my parents for a week, and I've travelled across the country. Tons of drama. Tons of stuff that normally would set me off. Instead, I've been incredibly calm. My mind is clear and even when the cake lady FORGOT HOW TO MAKE MY CAKE I didn't even feel a twinge of anxiety. 
Is this weird?! I don't want to look a gift horse in the mouth or anything, but it's so weird!!