I have been through this. I miscarried and then had a ectopic. I feel like you should tell her what you were making, even show her if she wants to see thw quilt you were making. Let her make your decision. Your love in stitches may be just what she needs to draw comfort & healing. I would have loved to have had a friend like you. Her heart will be so touched by your kindness. She needs to be able to grieve and know that others hurt for her loss.
Just that you have come here for advice shows how delicate this all is. Avoidance is all to often what happens in sorrowful circumstances and that adds pain on pain. Go give her a hug and share your intentions.
take care,
:-D