What Are The Side Effects Of Progynova 2mg During Pregnancy?

I have a cyclacur related question. I have been receiving fertility treatment in Greece and I'm now pregnant. I have been taking 4 Cyclacur tablets a day (for the uterus lining) and 4 200 mg Utrogestan a day also. I have purchased my next prescription in the UK and been prescribed Prognova as an alternative - I notice that Prognova (and Cyclacur I assume) are not recommended during pregnancy - I'm assuming this means a natural pregnancy. Any light you can shed would be very helpful. Thanks.