How do we tell grandparents? Blended family.

We just found out we’re pregnant (YAYYY) and I wanted a cute way to tell my husband’s parents we’re pregnant.

I have children from a previous marriage and my in-laws love them and have taken them as their own. So even though this baby will be their first biological grandbaby it won’t be their first grandchild. It’s hard to find cute cards online that address this situation.

Any advice for a cute way to tell them? They’re coming in over Valentine’s weeknd for my husband’s birthday and we’re all going to dinner. Any suggestions would be greatly appreciated!