Question about progesterone

I've had multiple losses - most of them very early. I'm 4w5d today and my doc has me on 200mg of progesterone TWICE a day (suppository). I've never had my progesterone checked with this pregnancy though it has been very low in the past. Does that seem like an awful lot? Can you have too much? I haven't even had a first appt yet so I wanted to see what you all thought since I don't have the chance to ask the doc for weeks still!