Chronic benefit declined

I am a 31 year old who has been on discovery health since I started work in 2006. I have had no major claims in or out of hospital other than my ceaser in 2012. I developed a blood clot in 2013 and I have been on chronic medication ever since. I have also not been on birth control since 2013 as I cannot be on any form of hormones. I fell pregnant about 7 weeks ago and had a miscarriage as I was still on warfarin. All I ask is that my new medication clexane be approved as I do not want to go through the emotional trauma of having another miscarriage. As per my email this will be my last pregnancy and I will only require the medication prior to me falling pregnant and during my first and third trimester. All discovery had to say is that it is declined and it will be reconsidered once I fall pregnant. I do not have the financial means to pay R2500 for medication - that is why I pay for medical aid. MY QUESTION IS : HOW MANY MISCARRIAGES DO I NEED TO HAVE BEFORE SOMEONE LISTENS TO ME? OR EVEN WORSE DO YOU WANT ME TO HAVE CHILD WITH DEFORMITIES ? I am so irritated as I have to keep on following up and have to speak to unsympathetic staff-DISAPPOINTED!!!