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which can cause sore nipples. It is also often prescribed in pregnancy
to maintain pregnancy.But it is usually given in the first trimester usually in early pregnancy till 12 weeks progesterone is produced by corpus luteum
after which placenta takes over the responsibility of progesterone supply to the developing fetus.
There is no harm taking it in first trimester but you should take it only after consulting your gynecologist.
Hope this answers your query.
Wishing you good health.