The pregnancy of friends is making me depressed

having infertility issues for over three years (including many failed IVFs, and miscarriages). Over the last year, I have had good friend after good friend announce her pregnancy. Literally, at least one per month. I am happy for them because I care for them, but each time I hear those words it hurts worse and worse.

When I am around them they talk mommy-talk (as they should) but being around them just throws me into depression. I’m afraid to even see my other girlfriends who are “trying” because I know at any second they’ll have “good news.” How can I be supportive of them while protecting my heart, emotions and mental health?