Progesterone question...

Cewilliams207554

So, this is my 4th pregnancy. The first one I had absolutely no issues, he is now two. The second and third ended in miscarriage. My doctor said that my progesterone levels were low. With this pregnancy...i am five weeks four days...i have had two blood test and both have shown increases in all levels. I told the doctor my concerns and she prescribed me the progesterone as a precaution. This is the time that i lost the first two. Though it doesn't seem like i need it, would you still take the p as a precaution?