Thanks for the query.
is to be practised only after medical supervision and guidance.
Please consult a gynecologist at the earliest, confirm the pregnancy
, exact dates of pregnancy, that it is inside the uterus
and then get proper prescription and guidance.
Do not play around with your wife's health and life, as there are life threatening complications of such casual intake, like severe bleeding, infection , incomplete abortion
Once the proper dose is taken, then follow up visit is also a must to confirm completion.