C.D.
I did pregesterone with both pregnancies. I had trouble conceiving with the first and my levels were low also...did progesterone suppositories for the first trimester and had a healthy baby.
The second we got pregnant by surprise and Doctor gave me progesterone supposotiores again to make sure.
Progesterone is basically "super glue" that makes the pregnancy stick...with low levels it can make the baby not attach to the wall as welll. That is what I undrestood it to be. Congrats and don't worry about the progesterone thing...it is easy and so simple compared to other issues!!