Ideas on how to tell the grandparents

Lyndsey
So I found out I was pregnant on Xmas <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> so haven't told my parents yet, I've been working over Christmas so will be celebrating on Monday with my parents and want an original way to tell them, was thinking a card but have no idea what to write!?!? Anyone got any good ideas?? Xx