In our case, it was suggested that the first transfer of the first cycle had a 15% chance of success. Whether that's "very rare" is perhaps a matter of perspect

In our case, it was suggested that the first transfer of the first cycle had a 15% chance of success. Whether that's "very rare" is perhaps a matter of perspective. It was low enough we assumed it would be a failure and we were surprised when it succeeded, but to a doctor it's a frequent occurrence.