Thanks for the query.
This condition is called spurious pregnancy
. In it the woman will think that she is pregnant but actually she is not.
So better to tell her that she is/was not pregnant. The reports of the tests will help in proving this.
By this she can come out the grieve that she lost the baby.
And let her visit gynecologist and take treatment for infertility
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429