Best friend is trying for another.. & I wish I was too.

I recently had a miscarriage in August. I can't try again until I've had 3 period cycles & I still have not had my first period. It's been almost 7 weeks since the d&c. Well I know she doesn't mean to throw it in my face but my best friend is now trying for another baby & she brings it up every time I talk to her & it bothers me so much & I don't want it to but it really hurts because I want to still be pregnant so much. Amy advice would be appreciated. I always think I'm doing fine until I hear about someone else finding out there pregnant & then I get depressed again.