For most pregnancies, issues with low progesterone go away once the placenta takes over at around 8-10 weeks
Since progesterone maintains your uterine lining during pregnancy so a fetus can grow, low levels can make it hard for you to stay pregnant
2 to 90 nanograms per milliliter (ng/ml) 2
Low progesterone is actually quite uncommon during pregnancy, and unless your doctor is concerned, it’s unlikely you’ll even be tested for progesterone levels past the first trimester
Outlook Low progesterone may cause abnormal uterine bleeding
In
Progesterone in pregnancy
Studies performed more than thirty years ago clearly point to the importance of progesterone in early pregnancy
They need to have had a scan that shows that there is a pregnancy in the uterus
In case of ectopic pregnancy
The aim of our review is to summarize the evidence regarding the role of exogenous progesterone in the prevention of early pregnancy loss
Design Systematic review and meta-analysis of diagnostic accuracy studies
Levels above 10 ng/mL in early pregnancy are considered encouraging, but not definitive
5 nmol/L
A low progesterone level will affect the development of the fetus and the outcome of the pregnancy
A meta-analysis evaluating the accuracy of a single progesterone test to predict pregnancy outcome in women with first trimester bleeding showed that a level less than 6 ng per mL (19
The extremely low initial progesterone of only 5 leads me to believe there's still a slim shot of the pregnancy being viable though
If you get pregnant, the fertilized egg attaches to this thickened lining
Low progesterone in early pregnancy may be a symptom of a pregnancy that isn’t viable versus a cause of miscarriage
Chemical pregnancy: A chemical pregnancy is a very early miscarriage that sometimes occurs before you even find out you are pregnant, around the date of the expected period