Congratulations on your pregnancy! I have 3 little ones and my hands are very full--full of good things.
Low progesterone early in pregnancy means 1 of 2 things and at this point it's impossible to know which is causing the levels to be so low. First, if your body doesn't produce adequate progesterone early in pregnancy, it can mean that you have a hormone imbalance (possible causes= PCOS, insulin resistance, obesity, or even perimenopause). Second, sometimes low progesterone can indicate that there is a problem with embryo (baby) itself not being healthy. Sometimes when an egg is preparing to be released through ovulation, it can be exposed to abnormal hormone levels that can affect it's development. In these cases, miscarriage is likely because the pregnancy itself is not healthy.
As I mentioned before, it's impossible to know why the progesterone is low at this point. Please, use the suppositories as directed and try to relax. Many pregnancies diagnosed with low progesterone progress to healthy, beautiful babies. Best wishes to you and yours! Nurse Midwife Mom