Ohh... I'm so sorry you have a need for this image... miscarriages are so hard.
I found this one in a Google search...
https://www.etsy.com/listing/2034934...?ref=related-0
And there's this one, that's not a digital stamp, but I like it ;) :
Impression Obsession Rubber Stamps Couple Large
A little more info about the image you saw might be helpful - we have some amazing sleuths in the forums! Was the couple seated, standing, front view, back view...?