IVF Post transfer Bleeding

Hi,
My Wife had IVF transfer on the 04/13, 3 days after the egg pickup.
She was asked to come for a Urine test on the 04/30.
Things were going fine till y'day when suddenly she observed pink spotting in the morning..By afternoon it was a brown discharge with some sticky substance.
We thought we will wait for a day before going to the clinic. Today morning there has been heavy bleeding.

We are going to the clinic for an examination...I am just hoping she is pregnant....
Has anybody faced this situation?

I noticed you didn't follow up-what happened with the bleeding? I am now in the same situation....