Tough question to answer. My experience is to give her time to adjust. She has probably been thinking one way for a long time and it will be an adjustment for her. I had 4 girls and a boy and I wanted a boy first, just a little while and I was happy about what we had. My advice, give her some time.

How old is your baby? Do you think maybe she is going through post partom depression and is just obsessing over the baies sex as an outlet? Just a thought. Sorry...but as a mother of six children I have a hard time understanding someone who has such an issue over the sex of her child.She must have realize its a 50% chance of eiher sex when she go pregnant, and she should be happy she has a healhy child. What if he baby was a boy who had serious health problems? We don't have control over these things and children aren't pets they are people. hey should be loved for who they are not what they are. Did she have bad experiences as a child with her mother perhaps? Maybe she is relaing having a girl wih her own childhood and is just scared? If you want to help her maybe you should ge her o alk with a proffessional and they may have some insight for her as of why she is feeling so strongly about this. I would do something because if she doesn't bond with your daugher she may resent her and no child should have to live with that. Sorry if this sounds harsh. Congratulations on having a healthy baby girl! Daughters are such a blessing!

Depression might be the case here, sometimes they happen after a pregnancy, and it doesnt mean its actually related to the baby's gender, but something else. In cases like these a doctor might help. (ps, I know late reply but still)