People told my husband they aren’t gone say happy Mother’s Day to me

Some people told my husband after he confronted them about the way they treat me and why they didn’t say happy Mother’s Day, to me. But my husband was told that since our baby passed away I’m not a mother to be celebrating Mother’s Day and that the baby wasn’t full term to even consider me as a mother. My baby was born at 21 weeks passed away couple of hours later. Me and my husband think that from the second you get the positive pregnancy test no matter what happen, a miscarriage, preterm birth, or if your baby was born full term and passed away. You are still a mother you did everything in your power to keep the baby safe.

Please tell me I’m not wrong for the way I think. I’ve been crying my eyes out, I couldn’t sleep all night.