HELP! progesterone?

Chelsea
Hey guys, so long story short we have had 2 miscarriages in the past year.. the doctors won't test us until after our third.. but really don't want to experience another.. anyways, we just found out SURPRISE we are pregnant! I'm fairly positive I need to take progesterone to sustain a pregnancy.. I can't get in to my dr this week.. any ideas or suggestions on what I can do in the mean time?