Is it safe to take Duphaston while trying to get pregnancy?

Hello doctor,

I am 35 years old and married for five years. I had two confirmed pregnancies before 11 years, which were terminated safely via a pill (no D and C). We now want to have a baby. I have excess dark, thick hair on my legs, thighs, and back, but I have regular menses, 30 days cycle. My weight is 103 lbs, slim disposition. A gynecologist has now prescribed Duphaston from day 5 to 25 for three months. Anemia profile came up normal on all accounts, including Folate by all methods and iron, etc. Only ferritin levels were a bit lower and slightly high reticulocyte count. Hb is 12.1. I have been taking Folvite-MB for four months. I am also taking a whole-food-based organic prenatal supplement, which has an RDA's of 70% of everything.

Is it safe for the fetus to take Duphaston? I read that it may cause unwanted facial hair in the fetus, etc. The dosage of folic acid at 5 mg is 10 times the RDA of 500 mcg. Is this safe? Can I stop the Folvite now, since my folate levels are anyways normal? It has been seven days since Duphaston now, and I have lesser whitish discharge than I normally have at day 9 - day 14 and lesser mid-cycle pain and seemingly lowered libido and slight headache. Is this normal and safe? Am I better off taking natural micronized progesterone? As there is lesser mucus, intercourse is drier, shall I use some natural lubricants like coconut oil without affecting pregnancy chances?

Thank you doctor,

Gynecologist had examined and mentioned that the uterine wall is a bit thin. Hence Progesterone will help and that the excess hair on my thighs and feet meant there is some hormonal issue (although I have been pregnant twice in the past). What brand of equivalent natural micronized Progesterone will you recommend and strength in mg? What day do I need to take the above, and for how many days or how many cycles? I will consult the doctor first before taking it. I just wanted a second opinion.