Occasions like this are hard to know what to do. If you have a friend who is struggling to get pregnant, has maybe had a miscarriage, or lost a child in another way, you may wonder how to treat occasions such as today.
My advice is acknowledge it. Don't let it pass pretending it won't hurt. Don't let them think there is just one more reason they don't get celebrated on a day like today.
Send them an email, a card or even a text telling them you are thinking of them, praying for them and celebrating them today.
I wouldn't advise doing it openly in a public place. Even a quick statement with a hug at church can be hard because it might set them off in tears and be embarrassing.
So be careful how and when you do it, but do it.
Acknowledge them for wanting so badly to have what so many are celebrating today: motherhood.
Remind them that you care and you know they would make an amazing mother.