Called the clinic and they said that it was normal that I have my period. Phew! I was so worried that my body was not reacting properly and that it was over. Part of the problem is that the doctor does not really explain the process, so I rely a lot on internet for info. Anyways, I feel really relieved and I'm still continuing my treatment.
On Wednesday, I will have a blood test and start phase 2 with the 2nd injection.