I think being open to life, means…being open to life. This is a life coming into your own family. Going to the baby shower sounds like an excellent step in being open.
Our pro-life pregnancy and young mom center has basically, a monthly baby shower. Young moms come in every month and are gifted items for their babies from before they are born, sometimes through the preschool years. For years I gifted cloth diapers, which were adorable and practical, and provided an economic way for mothers to provide for their babies. A nun helped me, and made hundreds of baby wipes. More pious women of the Catholic church make booties and quilts. We celebrate these lives every. single. month.
On a secular level, in the workplace, pretty much every mom I’ve every worked with has received some sort of shower, married or not.
You daughter will have plenty of other opportunities, as she faces the challenge of being a single mama, to contemplate God’s plan for marriage and the raising of children vs the reality of her situation. There is no reason to “help” with this. I have talked to many people about how the shame their parents gave to their ill timed pregnancy at a young age stayed with them all their lives, deeply ingraining of shame that stayed with them and effected their relationships with their parents forever. God will hold your daughter accountable, and provides forgiveness and redemption. All you have to do is love your daughter and new grandbaby at this point.
Congrats on your new grandchild.