Fertility medications causing hair loss????

[ddel]

have been going through fertility treatments for the last year and a half-intensely for the past 6 months.  I have been on many injectable and non injectable medications including follistim, Novidril, Lupron, and numerous progesterone supplements.  I have been having hair loss  for the past 6 months which is getting worse and worse.  I have about 50% of the hair I had before.  My scalp is itchy and sore and it is driving me crazy.  I have been to numerous doctors and no one can give me an answer.  I have had my thyroid and testosterone levels checked and both were normal.  My reproductive endocrinologist tells me it is not from the medication.  He says I should continue with the fertility treatments because getting pregnant will stop the hair loss.  I am terrified if I continue with the treatments that I will go bald.   I am anxious and stressed.  Has anyone else experienced this or know anyone who has experienced hair loss with any of these medications?  My gut tells me it is due to a fluctuation in hormones but the doctors are telling me I am wrong.  I am terrified that I will go bald and this itching is driving me crazy.