Wishing a happy Mother’s Day to my bff after miscarriage

Hi everyone, my best friend lost her baby at 12 weeks. She’s having trouble conceiving and she was so happy for this baby and I’m so devastated for her. I haven’t experienced this so I don’t want to be insensitive but is it wrong to wish her a happy Mother’s Day? Our relationship isn’t as strong anymore since she moved away but even when she was going through it, I had a hard time trying to console her because I’m bad with being sentimental 😔 I can’t really get her anything, she doesn’t live nearby. But I wanted to acknowledge her or send her a message but is it better if I don’t?