Does vitamin b6 and vitamin c helps maintain progesterone levels in early pregnancy?

Possibly: The research was done in 1972 on animals. Other nutrients may be even more important. The goal is to prevent deficiencies. Zinc is very important for the production of Progesterone and vital for the developing fetus. Vitamin d deficiency is very common and restoring vitamin d to normal levels increases successful pregnancies. Eat healthy, sleep well, de-stress and move frequently.