Should I reveal the gender to a bff of mine?

I have this BFF is a SAHM and who has been very obsessed with having a baby girl but she had 2 boys instead, and I am one of her boy’s god mother. She told me that if I get pregnant with a baby girl, she would want to be her god mother and buy her a lot beautiful clothes and toys, to fill her void of not being able to have girls. And true enough, I’m currently pregnant with a baby girl. My hubby has reserves on wanting her to be our child’s god mother and he is afraid that she will spoil our girl too much by buying her with a lot of things. We don’t want her to spend money on our girl as her hubby is having financial troubles and he hasn’t been frank with her. How do I let her down gently? Should I reveal the gender to her? Not sure if I should make her my girl’s god mother, given that we know about her hubby’s situation...