Dealing with grief during pregnancy

I just found out I was pregnant a week ago and due on my birthday (9/20). I lost my mother unexpectedly on February 6th of last year to suicide, and the anniversary is coming up and hitting me hard. I know that it's common to be emotional with the pregnancy hormones, but I'm feeling the grief almost as strongly as when she first passed away. Being pregnant for the first time and no longer having a mom is devastating. How have others dealt with this issue? (and yes, I've been in grief counseling for months now, which helps).