Yes, your calf may be what's called a 'freemartin'. Genetically freemartins are female, but they are effectively sterilised by hormones from the male twin in the uterus.

The degree of masculinization can vary and most freemartins do not show signs of this until they are a little older. Most tend to have an underdeveloped uterus, which your vet can feel when the heifer is of breeding age.

Unfortunately, over 90% of female calves born with a male twin are infertile, so it is quite likely you will be unable to breed from yours.