My mom keeps calling my baby her baby

She doesn’t mean harm, but every time she says it I can feel my eye twitch. I hate that I feel that way because she birthed me and I love her to death, but my baby is not her baby. Am I crazy or does anyone else feel like this? I wouldn’t mind her saying it a couple times, but any time she’s talking about my baby or asking about my baby, it’s “my baby” or “my ladybug” a whole bunch of my my my’s. I would be okay with “my grandbaby” or something but something about calling my baby your baby, even with her being my own mother, makes me uncomfy.