I would google side effects first. Why did he prescribe that are you at high risk of miscarriage? Progesterone helps our body have a healthy and sustain a pregnancy, that is the function it has on our bodies. I am totally into natural products and meds when possible if it were me I would ask if using a natural progesterone is an option well actually how much progesterone you need. I am an Arbonne consultant and my District Manager calls me the progesterone cream since I started using Arbonne's balancing cream to prevent and stop my migraine headaches. Before I started using it I read everything I could about it so they think I know everything which of course I don't. My RVP has helped so many women become pregnant and sustain a full term pregnancy and have a happy healthy babies with our Natural Balancing Cream.
Good Luck hope this helps a little.
Just to be clear I wasn't saying she should use Arbonne Progesterone cream just letting her know that it has helped many women. I am not a Dr. don't claim to be and would never tell someone to use something without checking first and doing their own research.