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I would recommend that the Metformin
be changed to Insulin injections during pregnancy
to minimise the side effects n a growing foetus. Thyronorm
can be continued though the thyroid levels may be slightly higher in pregnancy. You need to contact your Ob and discuss the pros and cons of using Metformin in pregnancy. Not serious adverse effects have been noed but it is advisable not to use it for blood sugar control. I hope you are taking Tablet Folic acid
as theDoctor orgered as well.