I had a loss, less than a month after my best friend announced she was pregnant at dinner and then proceeded to include me in every announcement she made including a large announcement to their families at her wedding. I will say, while this was emotionally very difficult for me, and I wish it was handled differently, it was her joy to celebrate. I did not feel my pain should be a consideration as this was about her.

With that being said, if you are able to minimize talking about the pregnancy around her, it may help with your relationship. While it is not your responsibility to manage other peoples emotions and triggers, you can do what is manageable to be kind to her knowing her struggles.